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10th Grade Biology Worksheets MCQs: Questions and Answers PDF Download
The process of denitrification returns nitrogen into the
- ecosystem
- atmosphere
- biosphere
- organism
The representation of biomass energy present in different levels of the food chain is classified as
- food chain pyramid
- food web pyramid
- biomass pyramid
- ecological pyramid
The oxides of nitrogen (NO, NO2) are dissolved in water to form
- nitric acid and nitrous acid
- citric acid and nitrous acid
- nitrates
- nitric acid and hydrogen
With the help of bacteria, the ammonia is transformed into
- ammonia nitrous
- ammonium nitrate
- nitrites
- nitrates
The movement of inorganic compounds and elements is classified as
- geochemical cycles
- kinematic cycles
- nutrient cycles
- biomass cycles
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