input: OPTIONS:
- negative energy
- potential energy
- atmospheric energy
- thermal energy Now, answer this question: Q: A hot-water heating system uses what type of energy to heat water? A:
A:
output: thermal energy

Q: What organelle contains the genetic material of the cell? A:

OPTIONS:
- gamete
- fetus
- meiosis
- nucleus

Answer: nucleus

Problem: OPTIONS:
- elitism
- darwinian
- minimalism
- gradualism
Q: Q: Fossil records support the idea that periods of little change may be interrupted by bursts of rapid change, an evolutionary model contrasted by what? A:
Answer: gradualism

Problem:OPTIONS:
- acceleration and speed
- work and speed
- volume and speed
- mass and speed

Q: The magnitude of the momentum vector is the product of what two properties? A:
****
A: mass and speed

Q: What term describes a type of redox reaction in which the same substance is both oxidized and reduced? A:
OPTIONS:
- interposition
- disapprobation
- misappropriation
- disproportion
disproportion

Q: What common ailment is typically caused by tense muscles in the shoulders, head and neck? A:
OPTIONS:
- disturbances
- fever
- pollution
- headache

Answer:
headache