Proteases are responsible for the destruction of alveoli, yet it is still produced around alveolus. why is that? what function does proteases serve in the lung?​

it is a learned trait

explanation:

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

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.