(4 points) The nitrogen cycle is shown below.
(Nitrates
Decomposition
1
Nitrogen fixing
bacteria
Nitrites
If the nitrogen-fixing bacteria were destroyed by a virus, the most likely result would be
са
Сь
a decrease in the nitrogen gas in the atmosphere
a decrease in nitrogen compounds available to organisms
an increase in nitrates available for plants to use
an increase in nitrates from animal wastes
d

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.