The celsius temperature scale is based on
a) air temperature
b) the human body
c) vapor
d) the boiling and freezing points of water

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes

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.

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?