Which item would be most directly harmed if soil fertility decreased? A. Road quality
B. Food supply
C. Air cleanliness
D. Vehicle production

Food supply

Explanation:

foods will become toxic and can lose their freshness and value, especially for foods that are of higher quality

the answer is "a.) well–developed vascular system."

explanation:

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.