The correct answer is A.
Explanation:
EPA History. Born in the wake of elevated concern about environmental pollution, EPA was established on December 2, 1970 to consolidate in one agency a variety of federal research, monitoring, standard-setting and enforcement activities to ensure environmental protection.
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The following is most likely true of a core sample of old, mature soil as D. It consists of several layers of different kinds of materials.
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What is mature soil?</h3>
Soil is bodily mature while it attains a moisture stage that permits it to interrupt into clumps measuring 1–10 mm. (With a better moisture content, the soil sticks to the tillage implement; with a decrease moisture content, the soil breaks into big clumps and clods.)
A soil can not be more mature than the oldest bushes developing in it. It can not be older than the substances wherein it paperwork or the panorama on which it's far found. Soil scientists paintings with geologists to decide how vintage the panorama is, and the way lengthy the figure substances had been there.
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Answer:
Gravitational redshift
Explanation:
Gravitational redshift, changes in a planet's orbital path, gravitational lensing provides concrete evidence for the general theory of relativity. Hope this is helpful and the answer you were looking for!
