The correct option is B.
The field of science is very dynamic and it thrives on discovery of new evidences. When new evidence are found for a particular phenomenon, the existing phenomenon has to be adjusted to fit the new discovery. Air pollution was once named to be responsible for global cooling because enough evidence was not available then to prove otherwise but now overwhelming evidences show that pollution is responsible for global warming.<span />
Protein is the nutrient that is essential to cellular construction, reproduction, and maintenance.
B. Roots take up nutrients and water from the ground like the mouth takes in food and drink.
Hope this helps!!
Municipal waste is the waste generated by <u>Industries</u><u> </u>and commercial enterprises, such as markets and hotels. An example of municipal waste is <u>Solid</u><u> </u><u>waste</u><u>.</u>
