Q: Who first proposed that earth is a magnet? A:

OPTIONS:
- Albert Einstein
- Isaac Newton
- Marconi
- william gilbert

Answer: william gilbert

Q: Food is broken into smaller particles by mastication, a process involving action by what structures? A:

OPTIONS:
- cilia
- proteins
- tonsils
- teeth

Answer: teeth

Q: What process within cells makes sure that every gamete receives a copy of every chromosome? A:

OPTIONS:
- genomes
- fission
- mutations
- meiosis

Answer: meiosis

Q: What is the only substance on earth that is stable in all three states? A:

OPTIONS:
- carbon
- mercury
- air
- water

Answer:
water