Four beakers have water at 20 °c. a piece of metal is dropped into the water in each beaker. metal initial temperature a 30 °c b 42 °c c 25 °c d 16 °c which metal will receive heat transfer from the water?

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.