input: OPTIONS:
- carbon dating
- quarter-life
- alpha emission
- half-life Now, answer this question: Q: How is the radioactive decay measured? A:
A:
output: half-life

Q: What is the process of breaking down food into components the body can absorb called? A:

OPTIONS:
- absorption
- filtration
- excretion
- digestion

Answer: digestion

Problem: OPTIONS:
- fission
- spawning
- budding
- fragmentation
Q: Q: Which asexual reproduction method do starfish use to reproduce? A:
Answer: fragmentation

Problem:OPTIONS:
- changed
- moved
- observed
- destroyed

Q: The law of conservation mass states that matter cannot be created or what? A:
****
A: destroyed

Q: What is a series of processes that remove unwanted substances from water called? A:
OPTIONS:
- water filtration
- water dilution
- water cleaning
- water treatment
water treatment

Q: The shoulder and hip are examples of what type of joints? A:
OPTIONS:
- lever
- pivot
- hinge
- ball and socket

Answer:
ball and socket