Q: The formula unit of sodium chloride dissociates into one sodium ion and one? A:

OPTIONS:
- oxygen ion
- magnesium ion
- electron
- chloride ion

Answer: chloride ion

Problem: OPTIONS:
- erosion
- evolution
- friction
- gravity
Q: Q: When pumping blood, the hearts of animals with very long necks must overcome what force? A:
Answer: gravity

Problem:OPTIONS:
- filtration
- depletion
- degradation
- excretion

Q: Name the process of removing wastes from the body. A:
****
A: excretion

Q: What kind of lakes form when volcanic eruptions create massive holes that fill with water? A:
OPTIONS:
- eruption bowls
- volcanic cavities
- lava lakes
- crater lakes
crater lakes

Q: The ammonium ion is what type of acid? A:
OPTIONS:
- normal -lowry
- kaon - lowry
- oxidized - lowry
- brnsted-lowry

Answer: brnsted-lowry

input with options: Q: The amount of water vapor in the air and the temperature of the medium affects how fast what travels? A:
OPTIONS:
- colour
- light
- traffic
- sound
output:
sound