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human activities that directly threaten coral reefs include ______.

a. increased land runoff of sediments, as a result of development and deforestation
b. trampling by careless sport divers
c. the release of human and animal waste into coastal waters
d. dragging boat anchors

Respuesta :

nabdullah0311

Answer:

The would be A.

Explanation:

its beacause a. is the only reasonable answer cause if it was d. it would just it something else meanwhile with c it a sea creature poison and b is gonna be anything else and pls brainliest me if im right

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