What do the circled arrows in the image indicate? a. co2 absorbed by the atmosphere b. co2 released to the atmosphere c. oxygen absorbed by the atmosphere d. oxygen released by the atmosphere

If 1 lb of fat is stored by the body for each 14.6×103kj of excess nutritional energy consumed, how long will it take this person to gain 1 lb?

The force will determine the acceleration.

Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.