SCIENCE
ECOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
eating plants and animals
|
|
|
breathing it in
|
|
|
absorbing it through our skin
|
|
|
none of these are correct
|
Detailed explanation-1: -The plants are eaten by animals, and the vegetable protein is changed to animal protein. The nitrates, with the help of bacteria, become nitrogen when used by both plants and animals. Thus, we get nitrogen into our bodies.
Detailed explanation-2: -Most plants get the nitrogen they need to grow from the soils or water in which they live. Animals get the nitrogen they need by eating plants or other animals that contain nitrogen. When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water.
Detailed explanation-3: -Human can’t utilise nitrogen through respiration, but can absorb through the consumption of plants or animals that have consumed nitrogen rich vegetation. The air we breathe is around 78% nitrogen, so it is obvious that it enters our body with every breath.
Detailed explanation-4: -The plant absorbs nitrogen from soil through the roots. Animals get their nitrogen by consuming plants and other animals.