What does the shift in carbon isotope values in marine shells indicate about the driving force for the abrupt warming 55 mya? (a) a spike in carbon dioxide occurred at the time of the warming. (b) large quantities of methane were responsible. (c) solar variability increased during the period. (d) a and/or b may be correct. (e) none of the answers is correct.

Ben(55 kg) is standing on very slippery ice when junior(25kg) bumps into him. junior was moving at a speed of 8m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision .

Both independent and dependent clauses

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to