Answer:
This would be the Waste Water Treatment act of 1972. This ensured that sewage was treated and not released into bodies of water which would eventually end up in our drinking water.
Explanation:
The answer is D. You are welcome.
<span>a. chemicals produced by neurons that function as hormones—neurohormones
b. chemicals that act locally on nearby cells—paracrine factors
c. chemicals secreted by presynaptic terminal—neurotransmiters
d. influences same cell type from which it is secreted—autocrine agent
e. chemical secreted into the blood by specialized cells; travels some distance to target tissues—endocrine hormones</span>
The layer of the sun can only be seen during a solar eclipse is corona
