I think c is the correct answer
This is the primary federal law in the United States governing water pollution. Passed in 1972 the act established the goals of eliminating releases of high amounts of toxic substances into water, eliminating additional water pollution by 1985, and that surface waters would meet standards necessary for human sports and recreation by 1983.
The leafs would contain more Chloroplasts, that is where photosynthesis occurs!
Answer:
The correct answer would be the active transport across the cell membrane.
The main functions of the cell membrane are a barrier, regulates transport (passive, facilitated, and active), the presence of receptors et cetera.
Only active transport (such as sodium pump, calcium pumps et cetera) requires the input of energy (ATP) for proper functioning. It uses energy to pump substances against the concentration gradient.
Thus, only active transport would be affected if less cellular energy is available.