Q: What happens to the crust if the moving oceanic crust reaches a deep sea trench? Choices: - ocean volcano - it cleaves - forms a continent - sinks into mantle A:
sinks into mantle

(Question)
Q: Plants are complex organisms with tissues organized into what? Choices: - carbons - systems - families - organs A:
(Answer)
organs

Ques: Q: What type of habitat do ferns need to grow? Choices: - cold - elevated - dry - moist A:
Ans: moist

(Q).
Q: In recent years, it has been hypothesized that molecules in the environment also act as? Choices: - pathogens - homeostasis disruptors - catalysts - endocrine disruptors A:
(A).
endocrine disruptors

Ques:Q: What were the first living things to evolve on earth? Choices: - eukaryotes - carbon - DNA - prokaryotes A:

Ans:prokaryotes

Question: Q: What is the lowest layer of the atmosphere? Choices: - ionosphere - chromosphere - lithosphere - troposphere A:
Answer:
troposphere