Cations adsorbed on e colloid and in the soil solution.
A soil colloid
- Ca2+
B soil solution
-H+
A13+
- H+
H
-- M.2+
-A13+
(2)
Identify the form of acidity labeled A and B
Indicate the letter representing acidity that will have an effect on plant
growth
Suggest a reason for the answer in QUESTION 4.3.2
Give an appropriate term for the ability of soil to exchange cations
се
(1)
with the soil solution​

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.

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.