Teniendo en cuenta que la presión aumenta 1 atmósfera por cada 10 metros de inmersión, calcula la presión en ese punto y
determina cuanto ocupará, en esas condiciones, el aire que ocupa 1 Len
la superficie

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.

there is no stairs in bungalow

explanation:

poof

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.