What happens during the Krebs Cycle? A. ATP and NADH from food are converted to CO₂ and O₂
B. NADH from glycolysis is converted to ATP and O₂ molecules
C. Glucose is broken down in a cycle of reactions to form pyruvate
D. Pyruvate is broken down in a series of reactions to form CO₂

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

In the first stage of the nuclear fuel cycle the spent fuel must be transported, processed, and disposed of properly. true or false