Q: Where are the oceans most polluted? A:
OPTIONS:
- in warmer waters
- on the ocean floor
- along reefs
- along coasts

Answer: along coasts

Q: What element makes up the majority of coal? A:
OPTIONS:
- iron
- lead
- silicon
- carbon

Answer: carbon

Q: What do you call the hard case that surrounds the soft parts of some animals? A:
OPTIONS:
- muscles
- shell
- membrane
- exoskeleton

Answer:
exoskeleton