How does sound energy travel?
a. in strings
b. in beams
c. in pulses
d. in waves

How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey

What happens whenever a net force acts on an object

Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean