Answer the following question given this paragraph: Some of them are inorganic . Inorganic materials are made from non-living substances like pebbles and sand. Q: Materials made from non-living substances like pebbles and sand are called what? Choices: - microscopic - fibrous - organic - inorganic A:
inorganic
Answer the following question given this paragraph: Q: Acting like drawstrings to close off the alimentary canal, what regulates the passage of material between compartments? Choices: - intestine - hamstring - uterus - sphincter A:
sphincter
Q: Answer the following question given this paragraph: Roundworms may be free-living or parasitic organisms. Free-living worms are found mainly in freshwater habitats. Some live in moist soil. They generally feed on bacteria, fungi, protozoa, or decaying organic matter. By breaking down organic matter, they play an important role in the carbon cycle. Q: By breaking down organic matter, roundworms play an important role in which cycle? Choices: - water cycle - metamorphic cycle - circadian cycle - carbon cycle A:
A: carbon cycle
Question: Answer the following question given this paragraph: Law stating that matter cannot be created or destroyed in chemical reactions. Q: What cannot be created or destroyed in a chemical reaction? Choices: - heat - mass - energy - matter A:
Answer: matter
*Question*
Answer the following question given this paragraph: Q: Worldwide, viruses seem to play a role in what percentage of the cases of human cancer? Choices: - 20 % - +.15 % - 5% - 15% A:
**Answer**
15%
*Question*
Answer the following question given this paragraph: Radioactivity is the ability of an atom to emit charged particles and energy from its nucleus. The charged particles and energy are called by the general term radiation. Q: What is the ability of an atom to emit charged particles and energy from its nucleus called? Choices: - accumulation - conductivity - power - radioactivity A:
**Answer**
radioactivity