Q: What substance comes toward earth's crust through mantle plumes? Choices: - rocks - water - gas - magma A:
magma

(Question)
Q: Which type of muscle fiber can sustain long contractions? Choices: - fast fibres - intense fibers - direct fibers - slow fibers A:
(Answer)
slow fibers

Ques: Q: What do all sound waves begin with? Choices: - oscillating matter - talking matter - enclosing matter - vibrating matter A:
Ans: vibrating matter

(Q).
Q: Energy transfer between what kinds of levels is generally rather inefficient? Choices: - producer - secondary - apex - trophic A:
(A).
trophic

Ques:Q: The most abundant formed elements in blood, erythrocytes are red, biconcave disks packed with an oxygen-carrying compound called this? Choices: - plasma - hydrogen - pus - hemoglobin A:

Ans:hemoglobin

Ques: Q: Greater reflection off what atmospheric layer allows am radio waves to travel even farther at night than they can during the day? Choices: - stratosphere - exosphere - troposphere - ionosphere A:
Ans:
ionosphere