Which of the following substances must be chemically transformed before it can be used by plants? a oxygen b carbon dioxide c nitrogen gas d water

How does friction with the atmosphere affect the speed of an artificial satellite

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.

What happens when water’s salinity increases? mass decreases. freezing point decreases. buoyancy of objects decreases. the amount of dissolved minerals decreases.