Diffusion is the movement of molecules across the cell membrane from concentration.
O low, high
O high, low
O high, equal
O equal, low

o high, low

Explanation:

Diffusion is the movement of a solute from an area of its high concentration to an area of its low concentration

the answer would be knowledge about cars!

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.