Scientists often work together in teams to solve problems. In 2009, an influenza virus emerged from pigs that went on to infect and estimated 24 percent of the world population. How could biologists from a variety of fields contribute to studying this widespread disease and developing a treatment, prevention, or cure?

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.

d) center of the mid-ocean ridge

give brainleysest

sinserly,

steckh986

the answer is c. altitude. hope this ! #brainiac