Q: What lens shape corrects myopia? Choices: - flat - convex - curve - concave A:
concave

Q: What is the intersection point of the critical temperature and the critical pressure called? Choices: - instance point - basic juncture - peak point - critical point A:
critical point

Q: Q: Gain or loss of what causes an atom to become a negatively or positively charged ion? Choices: - protons - neutrons - nucleus - electrons A:
A: electrons

Question: Q: A hypothesis is scientific only if it can be tested by what? Choices: - independent variable - making a conclusion - carbon dating - making observations A:
Answer: making observations

*Question*
Q: What does the moving piston in an engine turn? Choices: - hammer - muffler - brake - crankshaft A:
**Answer**
crankshaft

Q: Q: What is the most familiar fibrous protein found in your body? Choices: - cellulose - Actin - Collagen - keratin A:
A: keratin