Answer:
The study that involves the research over earth atmosphere and climate changes in the past is known as the paleoclimatology. The study mainly concentrate over the past climates of Earth and atmospheric changes that took place in the past centuries. Studying fossils.
Explanation:
The endoplasmic reticulum provides structure to the whole cell, or support, you could say.
The cell membrane protects the whole inside of the cell, and is the structure.
The cytoplasm provides support by holding everything up and it provides protection by surrounding all of the elements.
(I think)
I hope this helped
Greenhouse gases contributes the most