True or False: It's normal for climates to change naturally over time.

A. True
B. False

A. True

Explanation:

Climate is changing with the passage of time due to global warming and humans are responsible for this change. Climate is the average atmospheric conditions of an area for a long period of time about 30 years. Climate does not change with the passage of time while weather can change. Weather is the atmospheric conditions of an area on daily basis.

answer: 4

explanation: 8

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.