what is the origin for the term "greenhouse effect?

Answer 1

Have you ever been in a greenhouse? Perhaps not - you should see if a friend has one at home, and go round on a sunny day. Radiation from the sun passes through the glass and is absorbed inside the greenhouse, warming things up, but heat radiated from the things inside the greenhouse is not able to pass through the glass and escape, glass is opaque to that waveband, so the greenhouse becomes much warmer inside than the world is outside. The same effect occurs in the Earth's atmosphere, with certain gases such as carbon dioxide and methane playing the part of the glass.

Answer 2

The Earth and Venus are near each other in the Solar System, and are similar in size, density, and composition. Based on our understanding of the origin of the Solar System, we would expect that their initial atmospheres would have been rather similar. Yet the present atmospheres of the two planets could hardly be much more different than they are. How did this come to be? The reason is thought to lie in what is termed the "Runaway Greenhouse Effect".

Answer 3

in a greenhouse as light enters through it glass windows its wavelenght changes and it cannot be reflected back out of the glass,hence it remains inside the green house and consequently warms it up.the same effect is caused by the gases which r now known as the green house gases and they cause the earth to heat up more,hence it's called the green hiuse effect