Q: The water in some springs are hot because they're heated by what? A:

OPTIONS:
- gravity
- the sun
- fires
- hot magma

Answer: hot magma

Problem: OPTIONS:
- isotope test
- microwave theory
- radioactive illustrating
- radioactive dating
Q: Q: What is the term for the use of radioactive decay to estimate the ages of fossils and rock? A:
Answer: radioactive dating

Problem:OPTIONS:
- neutrons
- Gamma decay
- electrons
- protons

Q: Both alpha and beta decay change the number of what in an atom's nucleus? A:
****
A: protons

Q: Series and parallel circuits are two basic types of what? A:
OPTIONS:
- mechanical circuits
- chemical circuits
- mutual circuits
- electric circuits
electric circuits

Q: The term "environment of deposition" is useful for understanding the characteristics of what type of rock? A:
OPTIONS:
- glacial
- meteor
- limestone
- sedimentary

Answer: sedimentary

input with options: Q: What phenomenon sometimes causes harmful alleles to become fixed? A:
OPTIONS:
- natural selection
- competition
- spontaneous mutation
- genetic drift
output:
genetic drift