____________________ Ratios in Glacial Ice Reflect Water Temperature at the Time

Q42: Dropping sea level causes Earth's albedo to

Q43: The three factors that determine the amount

Q44: The ocean has become more acidic in

Q45: Despite a prediction that rainfall will increase

Q46: The 20 hottest years on record have

Q48: Where does carbon circulate and how is

Q49: How do carbonate rocks form?

Q50: What are the two isotopes of oxygen?

Q51: _ in younger layers of sediment shows

Q52: Methane gas is stored in sea-floor sediments