Q: What do people build to protect areas from floods? Choices: - reinforced walls - drains - sewers - dams A:
dams

(Question)
Q: How do most plants create food? Choices: - electrolysis - atherosclerosis - glycolysis - photosynthesis A:
(Answer)
photosynthesis

Ques: Q: The enzyme pepsin works only in the presence of what? Choices: - carbohydrates - sodium - oxygen - acid A:
Ans: acid

(Q).
Q: The plasma membrane of a skeletal muscle fiber is called the what? Choices: - sheath - annulata - soleus - sarcolemma A:
(A).
sarcolemma

Ques:Q: What type of diagnosis happens before a baby is born? Choices: - maternal - fetal - postnatal - prenatal A:

Ans:prenatal

Question: Q: High explosives create shock waves that exceed the speed of sound, a phenomenon that goes by what term? Choices: - light speed - ion speed - turbulence - supersonic A:
Answer:
supersonic