What best explain how green house gases effect the earth

Effect of the green house gases are discussed below.

Explanation:

The major effects of the Greenhouse gases on the Earth's atmosphere are such as:

The greenhouse effect is the effect that stated how natural gases of the earth stop the warm gases to go outside from the earth's atmosphere.Due to this result the rise in the temperature of the earth which is not good for the atmosphere of the earth it creates a dis-balance between Environment and temperature.This increased heat creates a problem for humans, Plants, and Animals.

The answer to this is b

It's either -limiting factors or -scarce resources but i'd go with my first answer since the food and water are abundant they really aren't scarce