How do nuclear power plants affect the aquatic ecosystem? A) Microbial agents used in nuclear power plants are deposited into the aquatic ecosystem.
B) Nuclear power plants are being built on land that used to be the habitat of aquatic life.
C) Heated water from nuclear power plants are deposited into the aquatic ecosystem.
D) Nuclear power plants pollute the air near the aquatic ecosystem.

Which of these serves as a reference for comparison during a scientific investigation? a)outcome variable (dependent variable) b) test variable (independent variable) c)control group d)hypothesis

Plz ! cattle ranchers and dairy farmers rarely allow all of their animals to reproduce instead they practice selective breeding and only encourage the reproduction of animals with specific features. which of the following cows would a dairy farm most likely choose to reproduce? a. a cow that makes a lot of milk. b. a cow that can run quickly. c. a cow with a think, soft fur. d. a cow with large, strong hooves.

The earth's oceans are made up of chlorine, and trace elements. a) carbon, oxygen b) oxygen, silicon c) hydrogen, oxygen d) nitrogen, oxygen