Q: What forms after air cools below its dew point? Choices: - sleet - smoke - plasma - fog A:
fog

Q: During strenuous exercise our muscles perform what kind of fermentation? Choices: - nitric acid - residual acid - excessive acid - lactic acid A:
lactic acid

Q: During the early paleozoic, the amount of carbon dioxide in the atmosphere compared to today was? Choices: - none - the same - much lower - much greater A:
much greater