A, your mouth because your saliva is a fluid that when you chew it breaks down the food
Answer:
Black color absorb more light that other color.
Explanation:
Photosynthesis is the process in which leaves absorb solar energy and use it to convert CO2 and H2O into chemical energy called glucose(food).
As photosynthesis is dependent on the sunlight energy therefore it has been suggested to scientists that they should genetically engineer a plant to have black leaves as black color absorbs more sunlight than any other color. Black color absorb all the wavelength of sunlight and it does not reflect any.
So more light absorbance capability of black color should be the reason behind this idea.
The answer is (1) because the carbon in the trees is released when it burns and this is the cause of global warming (in part)
It is not (2) because, I don't really know but it's not.
It is not (3) because it is exposing more sunlight and even that hardly affects it
And it is not (4) because biodiversity is the variety of species living in the forest so cutting them all down would just destroy their habitat and they would have to leave.