Q: What creates a new seafloor at the mid-ocean ridge? Choices: - earthquake - hurricane - glaciers - magma A:
magma

(Question)
Q: Fertilizer runoff can create what type of zones in the ocean? Choices: - fresh zones - barren zones - hot zones - dead zones A:
(Answer)
dead zones

Ques: Q: What do you call the regular changes in biology or behavior that occur in a 24-hour cycle? Choices: - cognitive rhythms - variable rhythms - sleep rhythms - circadian rhythms A:
Ans: circadian rhythms

(Q).
Q: What type of pollution results from the contaminants that enter a waterway or water body through a single site? Choices: - liquid source pollution - simple source pollution - targeted source pollution - point source pollution A:
(A).
point source pollution

Ques:Q: What are ring-shaped hydrocarbons called? Choices: - reverse hydrocarbons - curved hydrocarbons - cylindrical hydrocarbons - cyclic hydrocarbons A:

Ans:cyclic hydrocarbons

Ques:Q: What type of bacteria stains red? Choices: - gram - such bacteria - kilogram-negative bacteria - calcium - negative bacteria - gram-negative bacteria A:

Ans:
gram-negative bacteria