Which of the following occurs during photosynthesis? a. co2 is used to produce water b. co2 is absorbed by mitochondria c. co2 and h2o are converted to carbohydrates d. co2 and h20 are combined into carbonic acid

answer; the above answer to the above statement is (true)

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.