Q: What hydrocarbons contain only single bonds between carbon atoms? Choices: - caloric hydrocarbons - simple carbohydrates - unsaturated hydrocarbons - saturated hydrocarbons A:
saturated hydrocarbons

Q: What determines which type of precipitation falls? Choices: - air pressure - air currents - ground temperature - air temperature A:
air temperature

Q: Q: In a scientific experiment, the variable that is affected by the other one is called what? Choices: - effective variable - essential variable - independent variable - dependent variable A:
A: dependent variable

Question: Q: Where do oceans absorb gases from? Choices: - stratosphere - wind - sunlight - atmosphere A:
Answer: atmosphere

*Question*
Q: The nucleus is comprised primarily of? Choices: - energy - faith - matter - empty space A:
**Answer**
empty space

(Question)
Q: What type of substance is any matter that has a fixed chemical composition and characteristic properties? Choices: - physical substance - versatile chemical substance - seawater chemical substance - pure chemical substance A:
(Answer)
pure chemical substance