Name two ways in which human beings affect the atmosphere, geosphere, or hydrosphere.

1. humans drill into the geosphere for oil and dig up rocks

2. humans drill into the geosphere to get water (hydrosphere) to use for crops and personal uses

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.