Q: Synthesis, decomposition, replacement, and combustion are all types of what reaction? A:

OPTIONS:
- natural
- toxic
- mineral
- chemical

Answer: chemical

Problem: OPTIONS:
- it vibrates it
- it makes it rotate
- it cools it
- it heats it
Q: Q: Conduction from the core has what effect on the lower mantle? A:
Answer: it heats it

Problem:OPTIONS:
- ionic
- catalytic
- saturated
- unsaturated

Q: What type of hydrocarbons contain at least one double or triple bond between carbon atoms? A:
****
A: unsaturated

Q: What source of water pollution picks up chemicals from the ground with water and carries them to bodies of water? A:
OPTIONS:
- fertilizer
- erosion
- sediment
- runoff
runoff

Q: What kind of solid is characterized by an unorganized and unpredictable structure? A:
OPTIONS:
- magnetic
- aqueous
- porous
- amorphous

Answer: amorphous

input with options: Q: What is given off from plants and taken in by animals? A:
OPTIONS:
- methane
- sulfur
- nitrogen
- oxygen
output:
oxygen