Question: Q: What produces sound waves that travel outward in all directions in water? A:
OPTIONS:
- echo chamber
- ultrasound machines
- amplifiers
- echo sounders
Answer: echo sounders

input with options: Q: Earth acts like a giant version of what device, with angular momentum along its axis and pointing at polaris, the north star? A:
OPTIONS:
- compass
- telescope
- accelerator
- gyroscope
output: gyroscope

Q: Q: What form when water vapor condenses in the air around specs of matter? A:

OPTIONS:
- humidity
- storms
- condensation
- clouds

A: clouds

input: OPTIONS:
- ionic
- constant
- negative
- positive Now, answer this question: Q: What kind of charge does a proton have? A:
A:
output: positive

Q: The three greatest proximate threats to biodiversity are habitat loss, overharvesting, and introduction of what? A:

OPTIONS:
- solar radiation
- carbon dioxide
- carbon monoxide
- exotic species

Answer: exotic species

Q: Q: What specific part of the african violet is used to propagate other plants? A:

OPTIONS:
- petals
- spores
- roots
- leaves

A:
leaves