Q: Most scientists think that ordinary matter makes up how much of the total matter in the universe? A:

OPTIONS:
- greater than half
- about half
- more than half
- less than half

Answer: less than half

Problem: OPTIONS:
- proteins
- molecule
- atom
- cell
Q: Q: What is the smallest independently functioning unit of a living organism? A:
Answer: cell

Problem:OPTIONS:
- alkaloids
- oxides
- carborane
- carbides

Q: Binary compounds of carbon with less electronegative elements are called what? A:
****
A: carbides

Q: What is the term for any way that an animal interacts with other animals or the environment? A:
OPTIONS:
- animal biology
- animal way
- immunity
- animal behavior
animal behavior

Q: Paddles and hammers are examples of simple machines that increase the distance over which force is applied, while reducing what? A:
OPTIONS:
- momentum
- gravity
- intensity
- strength

Answer: strength

input with options: Q: Most air masses form over what two types of regions? A:
OPTIONS:
- arctic and marine
- polar and arctic
- marine and tropical
- polar and tropical
output:
polar and tropical