What is the frequency of this wave?
A. 1
B. 2
C. 3
D. 4

In the water cycle , when does water undergo a chemical change

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box

You find a fossil that you are sure shows evidence of bipedalism. you know this because which of the following anatomical traits is present? a. thighbones that angle in toward the knees b. a narrow pelvis c. opposable hallux d. posterior position of the foramen magnum