input: OPTIONS:
- eye
- antennae
- amplifier
- the ear Now, answer this question: Q: What organ do we use to hear sound? A:
A:
output: the ear

Q: According to dalton's law, unless they chemically react with each other, individual gases in a mixture of gases do not affect each other's what? A:

OPTIONS:
- mass
- weight
- density
- pressure

Answer: pressure

Problem: OPTIONS:
- slipping
- evaporation
- experiencing
- weathering
Q: Q: What is the term for the slow wearing down of rocks on earth's surface? A:
Answer: weathering

Problem:OPTIONS:
- nutrients
- spores
- nitrogen
- pollen

Q: What do male cones in seed plants contain? A:
****
A: pollen

Q: What is a gram stain used to identify ? A:
OPTIONS:
- radioactivity
- acids or bases
- different types of liquids
- different types of bacteria
different types of bacteria

Q: What is the term for the measure of the force of gravity pulling down on an object? A:
OPTIONS:
- mass
- density
- pressure
- weight

Answer:
weight