__________ __________ Ratios in Glacial Ice Can Be Used to Infer

Q40: Snowfields and glaciers have high albedos and

Q42: Carbon exists in the atmosphere mostly as

Q43: As temperature increases, the ratio of ¹⁸O

Q44: Continental interiors generally experience _ winters and

Q46: When carbon dioxide gas dissolves in seawater,

Q47: The four industrial greenhouse gases are:<br>A) carbon

Q48: Scientists determine past tree species abundances by

Q49: Water molecules containing ¹⁶O are _ and

Q50: Carbon exists in the atmosphere mostly as

Q68: When fossil fuels burn, carbon is released