Question

Explain Greenhouse effect

Answer 1

the trapping of the sun's warmth in a planet's lower atmosphere, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface.

Answer 2

The greenhouse effect increases the temperature of the Earth by trapping heat in our atmosphere. This keeps the temperature of the Earth higher than it would be if direct heating by the Sun was the only source of warming
When sunlight reaches the surface of the Earth, some of it is absorbed which warms the ground and some bounces back to space as heat.Greenhouse gases that are in the atmosphere absorb and then redirect some of this heat back towards the Earth.