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Stack #171989

Mr. Olson 5th Grade Chap 2 D

QuestionAnswer
When nitrogen is "fixed" what is it changed into? nitrogen compounds
What process breaks down carbon compounds in the carbon dioxide-oxygen cycle? cell respiration
Overlapping food chains form what? food webs
In the nitrogen cycle, what is converted to a usable form? nitrogen gas
What do sewage treatment plants clean up? waste water
What compounds act as the building blocks of living things? proteins
What is the process by which water vapor is changed to liquid water? condensations
The flow of energy from one organism to another is called a ____________. food chain
What kind of consumers are most humans? omnivores
The process by which water changes to water vapor is called what? evaporation
The organism that breaks things down in a food chain is called what? decomposer
Give an example of a producer. plant
Nitrogen is made usable by bacteria that grows on the roots of _________. plants
During photosynthesis plants give off what as a waste product? oxygen
Created by: mr.olson
 

 



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