input: OPTIONS:
- solid, liquid, gas, and wave
- solid, liquid, plasma, and metal
- solid , imine , gas , and plasma
- solid, liquid, gas, and plasma Now, answer this question: Q: What are the four well-known states of matter? A:
A:
output: solid, liquid, gas, and plasma

Q: In the scientific method, what is the initial, unproven explanation for why something is occurring? A:

OPTIONS:
- concepts
- idea
- theories
- hypothesis

Answer: hypothesis

Problem: OPTIONS:
- radiation
- colds and flu
- sunburn
- cancer
Q: Q: Avoiding carcinogens helps lower the risk of what? A:
Answer: cancer

Problem:OPTIONS:
- homeostasis
- a ditch
- a holding tank
- a reservoir

Q: What is part of a cycle that holds an element or water for a long period of time called? A:
****
A: a reservoir

Q: What is the name of the command center of the cell? A:
OPTIONS:
- mitochondria
- molecules
- vacuole
- nucleus
nucleus

Q: What type of joint is the knee joint? A:
OPTIONS:
- ball joint
- pivot joint
- condyloid joint
- hinge joint

Answer:
hinge joint