Question

Define these terms:-
1. Decantation
2. Sublimation
3. Winnowing
4. Denitrification
5. Nitrification

Answer 1

Answer:

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Answer 2

Answer:

1. Decantation is a process for the

separation of mixtures of immiscible

liquids or of a liquid and a solid

mixture such as a suspension.

2. Sublimation is the transition of a

substance directly from the solid

to the gas state, without passing

through the liquid state. The

reverse process of sublimation is

deposition or desublimation, in

which a substance passes directly

from a gas to a solid phase.

3. Winnowing is an agricultural method

developed by ancient cultures for

separating grain from chaff. .. In its

simplest form, it involves throwing

the mixture into the air so that the

wind blows away the lighter chaff,

while the heavier grains fall back

down for recovery.

4. Denitrification is defined as the

"microbial reduction of nitrate or

nitrite coupled to electron transport

phosphorylation resulting in gaseous

N either as molecular N2 or as an

oxide of N." The key to denitrification

as defined is the availability of the

N oxides, nitrite (NO2-) or nitrate

(NO3-), which are formed

5. Nitrification is the biological

oxidation of ammonia to nitritee

followed by the oxidation of

the nitrite to nitrate occurring

in separate organisms or direct

ammonia oxidation to nitrate in

comammox bacteria. Nitrification

is an important step in the nitrogen

cycle in soil.

Explanation:

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