One reason to prevent pollutant run-off into the Chesapeake Bay is to keep the oxygen levels in the bay from getting so low that a(n)_1 occurs, threatening organisms like crabs and fish.
A)
neap tide
B)
overpopulation
c)
marine dead zone
D)
undertow current

Which of the following correctly list the first appearance of organism in the fossil record from earliest to most recent

Brainliest goes to first explain why or why not in approximately 100 words. should scientists who identify genes and create new genetic engineering techniques have the right to patent their methods for their own profit?

The eruption of a nearby volcano causes a prairie ecosystem to receive a lot less sunlight.which of these is the most likely effect on the ecosystem? a-an increase in biodiversity. b-an increase in immigration to the area. c-a decrease in available water. d-a decrease in plant growth.