Question: Q: The presence of what, which acts as a trigger, affects the rate of chemical reaction? A:
OPTIONS:
- friction
- heat
- light
- catalyst
Answer: catalyst

input with options: Q: The pressure of a sample of gas is measured with an open-end what? A:
OPTIONS:
- thermometer
- barometer
- altimeter
- manometer
output: manometer

Q: Q: What is the process by which a liquid changes to a solid? A:

OPTIONS:
- melting
- vaporizing
- boiling
- freezing

A: freezing

input: OPTIONS:
- accumulation
- conductivity
- power
- radioactivity Now, answer this question: Q: What is the ability of an atom to emit charged particles and energy from its nucleus called? A:
A:
output: radioactivity

Q: What can be defined simply, as a change in position? A:

OPTIONS:
- velocity
- gravity
- speed
- motion

Answer: motion

Q: Q: A complex interactions of hormones result in an edible fruit that entices animals that help disperse what? A:

OPTIONS:
- pests
- water
- rocks
- seeds

A:
seeds