Answer:
Greenhouse effect
Step-by-step explanation:
Greenhouse effect -
The process by which the temperature of a planet increases above the normal temperature range .
In increase in the concentration of the green house gases are responsible for the green house effect .
The natural process of the greenhouse effect is crucial for the survival of living beings on the planet Earth , as without green house effect , the planet will freeze and will not support living organisms like Human beings , animal and plants .
But due to an increase in the green house effect , the temperature of the planet will increase more than the normal range and will lead to Global warming .