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The process that is almost the reverse of photosynthesis is ___.
respiration
a rise in average temperatures on Earth
biotic factors
nucleic acids
compost
sunlight
producers
sugar molecules
Which of these organisms is the first step in a food chain?
respiration
a rise in average temperatures on Earth
biotic factors
nucleic acids
compost
sunlight
producers
sugar molecules
Which of these can add nitrogen to the soil?
respiration
a rise in average temperatures on Earth
biotic factors
nucleic acids
compost
sunlight
producers
sugar molecules
Grass uses photosynthesis to produce ___.
respiration
a rise in average temperatures on Earth
biotic factors
nucleic acids
compost
sunlight
producers
sugar molecules
Features of the environment that are alive now or once were alive are called ___.
respiration
a rise in average temperatures on Earth
biotic factors
nucleic acids
compost
sunlight
producers
sugar molecules
DNA in organisms is formed by ___.
respiration
a rise in average temperatures on Earth
biotic factors
nucleic acids
compost
sunlight
producers
sugar molecules
Which of these is an abiotic factor?
respiration
a rise in average temperatures on Earth
biotic factors
nucleic acids
compost
sunlight
producers
sugar molecules
One possible result of extra carbon dioxide in the atmosphere is ___.
respiration
a rise in average temperatures on Earth
biotic factors
nucleic acids
compost
sunlight
producers
sugar molecules
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