Q: Name the process of removing wastes from the body. Choices: - filtration - depletion - degradation - excretion A:
excretion

Q: What is the most common fossil fuel? Choices: - diesel oil - uranium - methane - coal A:
coal

Q: Q: What is the medial bone of the forearm that runs parallel to the radius? Choices: - humerus - fibula - radius - ulna A:
A: ulna

Question: Q: What natural resource can be damaged by the accumulation of too much salt? Choices: - forests - sediment - mineral - soil A:
Answer: soil

*Question*
Q: Carbon fixation is the first step of what cycle involving light reactions? Choices: - sun cycle - life cycle - water cycle - calvin cycle A:
**Answer**
calvin cycle

(Q).
Q: What is it called when rays focus at different distances from the lens? Choices: - constant aberration - carbon aberration - angular aberration - spherical aberration A:
(A).
spherical aberration