Heated air inside a hot air balloon causes it to rise into the sky. when the air cools, the balloon returns to the ground. when is the hot air balloon behaving like an air mass in a high pressure area? in a low pressure area?

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.

The word belongs in a different group than all of the other words in the list.