OBJECTIVE LIFE SCIENCE
ECOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Which substance must be chemically transformed before it can be used by plants?
|
|
carbon dioxide gas
|
|
|
water vapor
|
|
|
nitrogen gas
|
|
|
groundwater
|
Explanation:
Detailed explanation-1: -N2 must be converted before it can be used by plants, a process is known as nitrogen fixation . Fixation transforms atmospheric nitrogen into forms that plants may receive through their roots.
Detailed explanation-2: -Nitrate is the form of nitrogen most used by plants for growth and development.
There is 1 question to complete.