green house refers to 1) farm house 2) house in a rural area 3) hot house 40 house with a small kitchen garden

Question

emegency . i know the answers don't seem to match at all .

Answer 1

house build by a glass structure to maintain the plants.

Answer 2

The greenhouse effect, first discovered by Joseph Fourier in 1824, and first investigated quantitatively by Svante Arrhenius in 1896, is the process in which the absorption of infrared radiation by an atmosphere warms a planet. The name comes from an incorrect analogy with the way in which greenhouses are heated by the sun in order to facilitate plant growth. In addition to the Earth, Mars, Venus and other celestial bodies with atmospheres (such as Titan) have greenhouse effects.

In common parlance, the term greenhouse effect may be used to refer either to the natural greenhouse effect, due to naturally occuring greenhouse gases, or to the enhanced (anthropogenic) greenhouse effect, which results from gases emitted as a result of human activities (see also global warming, scientific opinion on climate change and attribution of recent climate change).

The Earth receives energy from the Sun in the form of radiation, mostly at visible wavelengths. To the extent that the Earth is in a steady state, the energy stored in the atmosphere and ocean does not change in time, so energy equal to the incident solar radiation must be radiated back to space. Radiation leaving the Earth takes two forms: reflected solar radiation and thermal, or infrared radiation. The Earth reflects about 30% of the incident solar flux; the remaining 70% is absorbed, warms the land, atmosphere and oceans, and powers life on this planet. Eventually this energy is reradiated to space as infrared photons. This thermal, infrared radiation increases with increasing temperature. One can think of the Earth's temperature as being determined by the requirement that it produce the infrared flux needed to balance the absorbed solar flux.

The Earth's weather and climate are constantly changing, with daily, yearly and multiple-century cycles and trends in temperature and other variables that have a variety of causes; exact balance between absorbed solar flux and emitted infrared radition is not to be expected. But the imbalances are confidently expected to be small. The warming of the Earth in the 20th century is thought to have been accompanied by an imbalance of roughly 0.5 W/m2 averaged over the Earth's surface, most of this heat being stored in the oceans, a number that should be compared to 240 W/m2, the estimated average rate of solar energy absorption by the Earth and emission of infrared radiation by the Earth to space.)


Solar radiation at top of atmosphere and at Earth's surface.The key to the greenhouse effect is the fact that the atmosphere is relatively transparent to solar radiation but strongly absorbing in the infrared. Most of the solar radiation heats the surface, not the atmosphere. But most of the infrared radiation escaping to space has been emitted from the atmosphere, not the surface. The infrared photons emitted by the surface are mostly absorbed by the atmosphere and do not escape directly to space.

Greenhouse gases (GHGs) are gaseous components of the atmosphere that contribute to the greenhouse effect.

When sunlight reaches the Earth's surface, some is absorbed and warms the earth. Because the earth is much cooler than the sun, it radiates energy at much longer wavelengths than the sun; some of these longer wavelengths are absorbed by greenhouse gases in the atmosphere before they are lost to space. The absorption of this longwave radiant energy warms the atmosphere (the atmosphere also is warmed by transfer of sensible and latent heat from the surface). Greenhouse gases also emit longwave radiation both upward to space and downward to the surface. The downward part of this longwave radiation emitted by the atmosphere is the "greenhouse effect." The term is in fact a misnomer, as this process is not the primary mechanism that warms greenhouses.

The major natural greenhouse gases are water vapor, which causes about 36-70% of the greenhouse effect on Earth (not including clouds); carbon dioxide, which causes 9-26%; methane, which causes 4-9%, and ozone, which causes 3-7%. Note that it is not really possible to assert that a certain gas causes a certain percentage of the greenhouse effect, because the influences of the various gases are not additive. (The higher ends of the ranges quoted are for the gas alone; the lower ends, for the gas counting overlaps.)[1] [2]

Other greenhouse gases include, but are not limited to, nitrous oxide, sulfur hexafluoride, hydrofluorocarbons, perfluorocarbons and chlorofluorocarbons (see IPCC list of greenhouse gases).

The major atmospheric constituents (N2 and O2) are not greenhouse gases, because homonuclear diatomic molecules (e.g. N2, O2, H2) do not emit in the infrared as there is no net change in the dipole moment of these molecules.

Answer 3

a structure enclosed (as by glass) and used for the cultivation or protection of tender plants

Answer 4

5, all of the above

Answer 5

hot house