Q: When an oxidation number of an atom is decreased in the course of a redox reaction, that atom is being what? Choices: - replaced - increased - destroyed - reduced A:
reduced

(Question)
Q: What are the "levels" in a food chain or web called? Choices: - parts - root - gauges - trophic A:
(Answer)
trophic

Ques: Q: Explosive eruptions associated with what can be tens of thousands of times as powerful as an atomic bomb? Choices: - forest fires - hurricanes - earthquakes - volcanoes A:
Ans: volcanoes

(Q).
Q: What occurs when a parent cell splits into two identical daughter cells of the same size? Choices: - linear fission - symbiotic fission - twin fission - binary fission A:
(A).
binary fission

Ques:Q: What weather phenomenon, which may bring clouds and precipitation, is created by stalled air masses? Choices: - susceptible front - cool front - Horizontal Front - stationary front A:

Ans:stationary front

Ques: Q: What kind of hormones are derived from cholesterol? Choices: - germs - Antibiotic - synthesis - steroid A:
Ans:
steroid