What is greenhouse explain?
A greenhouse is a building with glass walls and a glass roof. Greenhouses are used to grow plants, such as tomatoes and tropical flowers. A greenhouse stays warm inside, even during the winter. In the daytime, sunlight shines into the greenhouse and warms the plants and air inside.
Why it is called greenhouse?
The process is called the greenhouse effect because the exchange of incoming and outgoing radiation that warms the planet works in a similar way to a greenhouse. Picture this: a greenhouse is so successful at growing plants year-round, even when it's too cold outside for some plants to typically thrive.
What is the greenhouse answer?
The greenhouse effect is the way in which heat is trapped close to Earth's surface by “greenhouse gases.” These heat-trapping gases can be thought of as a blanket wrapped around Earth, keeping the planet toastier than it would be without them.
What is greenhouse and its effects?
The greenhouse effect: some of the infrared radiation from the Sun passes through the atmosphere, but most is absorbed and re-emitted in all directions by greenhouse gas molecules and clouds. The effect of this is to warm the Earth's surface and the lower atmosphere.
What is a greenhouse also called?
greenhouse, also called glasshouse, building designed for the protection of tender or out-of-season plants against excessive cold or heat.
What is another name for greenhouse?
What is another word for greenhouse?conservatoryglasshousehothousearboretumcoolhousenurseryorangeryplanthousepotting shedgazebo6 more rows
Why is greenhouse effect important?
Greenhouse gases let the sun's light shine onto the Earth's surface, but they trap the heat that reflects back up into the atmosphere. In this way, they act like the insulating glass walls of a greenhouse. The greenhouse effect keeps Earth's climate comfortable.
What are 5 effects of greenhouse gases?
CONSEQUENCES OF THE GREENHOUSE EFFECTThawing of glacial masses. ... Flooding of islands and coastal cities. ... Hurricanes will be more devastating. ... Migration of species. ... Desertification of fertile areas. ... Impact on agriculture and livestock.
Is greenhouse a gas?
The main greenhouse gases whose concentrations are rising are carbon dioxide, methane, nitrous oxide, hydrochlorofluorocarbons (HCFCs), hydrofluorocarbons (HFCs) and ozone in the lower atmosphere.
What are the 10 causes of greenhouse effect?
greenhouse effect, a warming of Earth's surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapour, carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect.
What is a greenhouse Class 6?
A greenhouse is a house made of glass that can be used to grow plants. The sun's radiations warm the plants and the air inside the greenhouse. The heat trapped inside can't escape out and warms the greenhouse which is essential for the growth of the plants. Same is the case in the earth's atmosphere.
What is the greenhouse effect answers com?
Water vapour, carbon dioxide and some other naturally occurring gases can absorb part of this radiation, allowing it to warm the lower atmosphere. This absorption of heat, which keeps the surface of our planet warm enough to sustain us, is called the greenhouse effect.
What is the greenhouse layer?
At top of stratosphere, 30 miles high, ozone absorbs most of the harmful ultraviolet radiation from the Sun. At the top of the troposphere, 12 miles high, ozone acts as a greenhouse gas, trapping heat.
What is greenhouse effect answer for Class 8?
Solution: Greenhouse effect is a process by which solar radiation is absorbed by greenhouse gases and the temperature of Earth's atmosphere is increased. This increase in the temperature of the surroundings is responsible for global warming. Gases like Carbon dioxide, methane, nitrous oxide, water vapour, etc.
Why does the atmosphere cool at night?
During the night, the atmosphere cools somewhat, but not greatly, because its emissivity is low. Diurnal temperature changes decrease with height in the atmosphere. Within the region where radiative effects are important, the description given by the idealized greenhouse model becomes realistic.
How does the atmosphere lose heat?
In reality, the atmosphere near the Earth's surface is largely opaque to thermal radiation and most heat loss from the surface is by convection. However radiative energy losses become increasingly important higher in the atmosphere, largely because of the decreasing concentration of water vapor, an important greenhouse gas. Rather than the surface itself, it is more realistic to think of the greenhouse effect as applying to a layer in the mid- troposphere, which is effectively coupled to the surface by a lapse rate. A simple picture also assumes a steady state, but in the real world, the diurnal cycle, as well as the seasonal cycle and weather disturbances, complicate matters. Solar heating applies only during daytime. During the night, the atmosphere cools somewhat, but not greatly, because its emissivity is low. Diurnal temperature changes decrease with height in the atmosphere.
What is the idealized greenhouse model?
Details. The idealized greenhouse model is a simplification. In reality, the atmosphere near the Earth's surface is largely opaque to thermal radiation and most heat loss from the surface is by convection.
What is the temperature of a blackbody?
An ideal thermally conductive blackbody at the same distance from the Sun as Earth would have a temperature of about 5.3 °C (41.5 °F). However, because Earth reflects about 30% of the incoming sunlight, this idealized planet's effective temperature (the temperature of a blackbody that would emit the same amount of radiation) would be about −18 °C (0 °F). The surface temperature of this hypothetical planet is 33 °C (59 °F) below Earth's actual surface temperature of approximately 14 °C (57 °F). The greenhouse effect is the contribution of greenhouse gases and aerosols to this difference.
What is the effect of radiation on the atmosphere?
Radiatively active gases (i.e., greenhouse gases) in a planet's atmosphere radiate energy in all directions. Part of this radiation is directed towards the surface, thus warming it. The intensity of downward radiation – that is, the strength of the greenhouse effect – depends on the amount of greenhouse gases that the atmosphere contains.
What is the term for the gases that allow sunlight to pass through the atmosphere?
From Wikipedia, the free encyclopedia. Jump to navigation Jump to search. Atmosopheric phenomenon. For other uses, see Greenhouse (disambiguation). Greenhouse gases allow sunlight to pass through the atmosphere, but then absorb and reflect the infrared radiation (heat) the planet emits.
What is the temperature of the Earth's surface?
Earth's surface, warmed to an "effective temperature" around −18 °C (0 °F), radiates long-wavelength, infrared heat in the range of 4–100 μm. At these wavelengths, greenhouse gases that were largely transparent to incoming solar radiation are more absorbent.
What is a greenhouse?
A greenhouse, or simply green house (also called a glass-house or hothouse) is a building where plants such as flowers and vegetables are grown. It usually has a glass or translucent plastic roof. Many greenhouses also have glass or plastic walls. Greenhouses warm up during the day via penetration of the sun's rays which heat the plants, ...
When do plants grow in greenhouses?
Many vegetables and flowers are grown in greenhouses in late winter and early spring, when it is still too cold to grow plants outside. Then these plants move into the soil outside as the weather warms up. Greenhouses are used to grow crops in cold countries such as Canada.
Can you water plants in a greenhouse?
Gardening and growing plants in greenhouses is different from growing plants outside as no rain can get inside a greenhouse, so gardeners have to water plants. Also, greenhouses can get very hot from the sun's heat, so gardeners have to make sure that it does not get too hot for the plants.
Where are greenhouses used?
Greenhouses are used to grow crops in cold countries such as Canada . The largest group of greenhouses in the world is in Leamington, Ontario (in Canada), where about 200 acres (0.8 km²) of tomatoes are grown in glass greenhouses.
Who built the first modern greenhouse in Holland?
In the 1500s, Italian gardeners built structures for the tropical plants that explorers brought back to Italy. Jules Charles built the first modern greenhouse in Holland.
Do commercial companies have greenhouses?
Commercial companies usually have larger greenhouses for horticultural purposes, but have more substantial structures for plant displays where the public is admitted. For the same reason, botanic gardens usually have a high proportion of greenhouses with substantial structures.
Who built the first greenhouse?
Jules Charles built the first modern greenhouse in Holland. In the 1800s, large greenhouses were built in England. The greenhouse concept also appeared in the Netherlands and then England in the 17th century.
What are greenhouses used for?
In countries with cool climates, commercial greenhouses are used to grow tomatoes and other warm-weather vegetables. See also conservatory. The Editors of Encyclopaedia Britannica This article was most recently revised and updated by Melissa Petruzzello, Assistant Editor. History at your fingertips.
Why are greenhouses important?
Large greenhouses are important in agriculture and horticulture and for botanical science, while smaller structures are commonly used by hobbyists, collectors, and home gardeners. greenhouse. Greenhouse in Braunschweig, Germany. Matthias Sebulke. Read More on This Topic.
What can be used to protect plants from heat?
Glass structures such as greenhouses or outdoor frames can provide additional protection for tender plants. Such structures can be heated and the temperature regulated by a thermostat to any required degree. Thus, in temperate regions, orchids and other tropical plants can be grown so that they flower throughout the…
What temperature should a greenhouse be?
In a cool greenhouse, the nighttime temperature falls to about 7–10 °C (45–50 °F). Among the plants suited to cool greenhouses are azaleas, cinerarias, cyclamens, carnations, fuchsias, geraniums, sweet peas, snapdragons, and a variety of bulbous plants including daffodils, irises, tulips, hyacinths, and narcissi.
What was the greenhouse in the 19th century?
By the middle of the 19th century, the greenhouse had developed from a mere refuge from a hostile climate into a controlled environment, adapted to the needs of particular plants. A huge increase in the availability of exotic plants in the 19th century led to a vast increase in glasshouse culture in England and elsewhere.
What is a glasshouse?
Greenhouse, also called glasshouse, building designed for the protection of tender or out-of-season plants against excessive cold or heat. In the 17th century, greenhouses were ordinary brick or timber shelters with a normal proportion of window space and some means of heating. As glass became cheaper and as more ...
What is the glazing on a greenhouse?
A greenhouse has a large expanse of glazing on its sides and roof so that the plants are exposed to natural light for much of the day. Glass has been the traditional glazing material, but plastic films, such as polyethylene or polyvinyl, and fibreglass are also common.
Why cultivate in a greenhouse?
As we mentioned earlier, greenhouses must be a kind of oasis for your plants, providing them with enough light, ventilation, humidity and an adequate temperature.
Are you interested in this topic?
We are sure now you have a better idea of “ What is Greenhouse Farming? “. We want to know how passionate you are about agriculture, leave us a comment and share with us what you know about greenhouses and their many advantages! Ask questions, let’s debate! This is how we will continue enriching this article every day. See you in the next article!
What is greenhouse farming?
Greenhouse Farming is the process of cultivating crops and vegetable in a greenhouse ecosystems environment. Cultivation in greenhouses is a practice that has allowed farmers to increase their performance, while improving the quality of products, isolating them in micro-ecosystems that have the ideal conditions for plants to grow healthy, ...
Why are greenhouses used?
In these cases, there is always the possibility that the crops will not be able to adapt to these abrupt changes, and that is why greenhouses are used to protect the plants and to produce fruit all year round.
Why is it important to grow plants in greenhouses?
Cultivation in greenhouses, by allowing the farmer to plant under optimal conditions, ensures the good development of the crop. And as you can all imagine, a plant that grows well is a plant that bears good fruit…. fruits that can be sold on the market at a good price.
What temperature does tomato need to be to bear fruit?
On the other hand, if temperatures are above 25° or 27° degrees, the development of the tomato is altered and it does not bear fruit correctly.
Why do farmers use greenhouses?
When growing using greenhouses it is much easier to keep track of how resources are used and to manage them correctly. Farmers can monitor the growth of their plants more carefully, and use the necessary fertilizers at each stage of development, for example. The same goes for water.
How many crop spaces are needed for iridium sprinklers?
Some sprinklers are inevitably placed on the wooden border. With iridium sprinklers, only 4 crop spaces (3.3%) must be taken, while with quality sprinklers, 12 crop spaces (10%) are occupied.
What is a greenhouse in Joja?
Greenhouse. A place to grow crops from any season, year round! The Greenhouse is a building present on the farm from the outset. However, it is initially in a state of disrepair, making it unusable. You can repair it by completing the Pantry bundles for the Community Center, or by a purchase from the Joja Community Development Projects for 35,000g.
Can you use sprinklers to water crops?
If you intend to use automated sprinklers to water crops, some soil tiles must be sacrificed to place the sprinklers. The growing area is too large for any sprinkler to water the center from any edge. In addition, the 12-by-10 shape of the farmable area cannot be covered only with the square shapes of sprinkler watering.
How many fruit trees can you grow in a greenhouse?
It is possible to grow as many as 18 fruit trees inside the greenhouse. One possible optimal placement is shown below.
Can you refill a watering can?
Standing on its east side, you can refill your Watering Can. Crops that regrow will continuously regrow and not die at the end of any season. There is a wood border one tile thick surrounding the crop rectangle. It is possible to place sprinklers on this border to water any of the tiles of the crop land within its reach.
Do scarecrows need to be watered in a greenhouse?
There, Crops can be planted, grown, and harvested at any time of year without reference to normal season restrictions. Scarecrows are not required in the greenhouse to prevent crows from eating crops. Crops do need to be watered, even on rainy days. There is a water trough along the north wall, where the Watering Can can be refilled. Crops that regrow will continuously regrow and not die at the end of any season.
Can you sprinkle on a wood border?
It is possible to place sprinklers on this border to water any of the tiles of the crop land within its reach. Between the wood border and the greenhouse walls is a region two tiles thick that is unsuitable for crops, and populated along the walls with decorative items (plants, tools, barrels, water trough). It is possible to plant fruit trees ...
What is the greenhouse academy based on?
Welcome to the Greenhouse Academy students! here you will learn about the new and upcoming Tween Drama show; the Greenhouse Academy based on the original Israeli version, the Greenhouse by Giora Chamizer.
What is the name of Hayley Woods' brother?
Greenhouse Academy is about the fierce and strong Hayley Woods as she and her kind hearted, jock brother, Alex Woods navigate their away around life after their mom dies in a space shuttle crash. A few months later the kids join Greenhouse Academy, a school for future leaders.
Who played Brooke Osmond in Greenhouse Academy?
Caroline Dorothy Grace Van Dien better known as Grace Van Dien is a well known American actress and the daughter of the famous American actor, Casper Van Dien , who played the role of Brooke Osmond during the first and second seasons of Greenhouse Academy .
Overview
The greenhouse effect is a process that occurs when energy from a planet's host star goes through its atmosphere and heats the planet's surface, but greenhouse gases in the atmosphere prevent some of the heat from returning directly to space, resulting in a warmer planet. Earth's natural greenhouse effect keeps the planet from having the below freezing temperature that it would hav…
History
The existence of the greenhouse effect, while not named as such, was proposed by Joseph Fourier in 1824. The argument and the evidence were further strengthened by Claude Pouillet in 1827 and 1838. In 1856 Eunice Newton Foote demonstrated that the warming effect of the sun is greater for air with water vapour than for dry air, and the effect is even greater with carbon dioxid…
Definition
The IPCC Sixth Assessment Report working group 1 defines the greenhouse effect as:
The infrared radiative effect of all infrared-absorbing constituents in the atmosphere. Greenhouse gases (GHGs), clouds, and some aerosols absorb terrestrial radiation emitted by the Earth's surface and elsewhere in the atmos…
Details
The idealized greenhouse model is a simplification. In reality, the atmosphere near the Earth's surface is largely opaque to thermal radiation and most heat loss from the surface is by convection. However radiative energy losses become increasingly important higher in the atmosphere, largely because of the decreasing concentration of water vapor, an important greenhouse gas. Rather than the surface itself, it is more realistic to think of the greenhouse effect as applying to …
Examples in the atmosphere
A greenhouse gas (GHG) is a gas capable of trapping solar radiation energy within a planet's atmosphere. Greenhouse gases contribute most of the greenhouse effect in Earth's energy budget.
Greenhouse gases can be divided into two types, direct and indirect. Gases that can directly absorb solar energy are direct greenhouse gases, e.g., water vap…
Role in climate change
Strengthening of the greenhouse effect through human activities is known as the enhanced (or anthropogenic) greenhouse effect. As well as being inferred from measurements by the CERES satellite throughout the 21st century, this increase in radiative forcing from human activity has been observed directly, and is attributable mainly to increased atmospheric carbon dioxide levels. According t…
Real greenhouses
The "greenhouse effect" of the atmosphere is named by analogy to greenhouses which become warmer in sunlight. However, a greenhouse is not primarily warmed by the "greenhouse effect". "Greenhouse effect" is actually a misnomer since heating in the usual greenhouse is due to the reduction of convection, while the "greenhouse effect" works by preventing absorbed heat from leaving …
Related effects
The anti-greenhouse effect is a mechanism similar and symmetrical to the greenhouse effect: in the greenhouse effect, the atmosphere lets radiation in while not letting thermal radiation out, thus warming the body surface; in the anti-greenhouse effect, the atmosphere keeps radiation out while letting thermal radiation out, which lowers the equilibrium surface temperature. Such an effect has been proposed for Saturn's moon Titan.
Types of Greenhouses
Role of Greenhouses
- Many vegetables and flowers are grown in greenhouses in late winter and early spring, when it is still too cold to grow plants outside. Then these plants move into the soil outside as the weather warms up. Greenhouses are used to grow crops in cold countries such as Canada. The largest group of greenhouses in the world is in Leamington, Ontario (in Canada), where about 200 acre…
Gardening in Greenhouses
- Gardeningand growing plants in greenhouses is different from growing plants outside as no rain can get inside a greenhouse, so gardeners have to water plants. Also, greenhouses can get very hot from the sun's heat, so gardeners have to make sure that it does not get too hot for the plants. Greenhouses usually have vents that can be opened to let excess heat out. Some greenhouses …
History
- Roman gardeners grew cucumbers in frames covered with oiled cloth or with sheets of mica. In the 1500s, Italian gardeners built structures for the tropical plants that explorers brought back to Italy. Jules Charles built the first modern greenhouse in Holland. In the 1800s, large greenhouses were built in England. The greenhouse concept also appeared in the Netherlands and then Engl…
References
- ↑ "Tips for Greenhouse Growing". Real Men Sow. 2018-08-23. Retrieved 2020-08-21.{{cite web}}: CS1 maint: url-status (link)
Further Reading
- Woods, May (1988) Glass houses: history of greenhouses, orangeries and conservatories. Aurum Press, London, ISBN 0-906053-85-4.
- Mini Greenhouse nhà kính mini Archived 2021-01-09 at the Wayback Machine