Even though water, h2o, is important to all life as we know it, it is, itself, a(n) compound.

Explanation:

It's a inorganic compound because doesn't have any carbon atoms, the importance of this is that Water, as an inorganic composition, doesn't degrade  , like meet for example. Also, as inorganic, it has weak bonds, which allow it to change its consistency.

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.

one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.