Q: What happens to the volume of a balloon when you add moles of gas to it by blowing up? Choices: - changes randomly - decreases - stays the same - increases A:
increases

(Question)
Q: Why are continents unable to be pushed down into the mantle by plate boundaries? Choices: - gravity - surface tension - density - buoyancy A:
(Answer)
buoyancy

Ques: Q: What are resources that can not be remade, or would take too long to remake to keep up wiht human use called? Choices: - renewable resources - green resources - photoreactive resources - nonrewable resources A:
Ans: nonrewable resources

(Q).
Q: The burning of charcoal is what type of reaction? Choices: - condensation - physical - evaporation - combustion A:
(A).
combustion

Ques:Q: How many valence electrons does helium have? Choices: - Five - six - three - two A:

Ans:two

Q: What are the most abundant unicellular algae in the oceans? Choices: - chlorella - sporozoans - staurikosaurus - chryosophytes A:
chryosophytes