Kim is creating a model to show how energy moves through an ecosystem. Which of the following could she use to best describe the role that plants play in this process? A. Plants use sunlight to create food for other organisms. B. Plants create carbon dioxide for other organisms. C. Plants remove oxygen from other organisms. D. Plants increase the water temperature for other organisms.

Smog is the term used to describe the combination of fog and smoke

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

Need what is special about water as a compound? how does water regulate climate? what drives water evaporation?   why is the water vapor fresh water when it rises from the ocean? why might freshwater in the form of snow take longer to enter the water cycle again than liquid precipitation?   what is an aquifer? what role do people play in the water cycle? plz just answer as many as you can ! thx if you !