Q: A lipid is one of a highly diverse group of compounds made up mostly of what? Choices: - nucleic acid - amines - proteins - hydrocarbons A:
hydrocarbons

Q: What type of minerals form when salt water evaporates? Choices: - sulfide - carbonate - fermite - halide A:
halide

Q: Q: What is the series of changes in the life of an organism? Choices: - insect metamorphosis - evolution - circle of life - life cycle A:
A: life cycle

Question: Q: What are scientists called who study the weather and give forecasts? Choices: - climatologists - geologists - botanists - meteorologists A:
Answer: meteorologists

*Question*
Q: Radioactive isotopes are characterized by an unstable what? Choices: - shell - proton - electrons - nuclei A:
**Answer**
nuclei

Q: Energy that is released when a chemical reaction takes place is known as what? Choices: - liquid energy - consequence energy - thermal energy - chemical energy A:
chemical energy