Eutrophication occurs when there is not enough in the water for animals and fish. A.

carbon
B.

oxygen
C.

nitrogen
D.

hydrogen

Marine exptoration of oil uses seismic waves to locate oil in the seabed. what is a negative impact from seismic waves on the aquatic ecosystem of the ocean? a.seismic waves kill microoganisms b.seismic waves disrupts the sand and causes seafloor erosion c.seismic waves have virtually no adverse affects on marine life d.seismic waves damage the sonar that dolphins and whales use to orient themselves underwater

Nationalist movements in the ottoman empire resulted in

Anoxia, or a lack of oxygen in bodies of water, leads to a. unsafe drinking water b. dead zones c. global warming d. algae blooms select the best answer from the choices provided. a b c d