Question

1) atmospheric nitrogen cannot be taken directly from atmosphere by plant, but it is an essential component. how do they take nitrogen?
2) why should we not let the water collect anywhere in our neighbourhood? ​

Answer 1

Answer:

1. Neither plants or animals can obtain nitrogen directly from the atmosphere. Instead, they depend on a process known as nitrogen fixation. Key players in this process are legumes and the symbiotic bacteria which are associated with the legume's root nodules. These bacteria are known as nitrogen-fixing bacteria.
2. The main reason stagnant water should not be allowed to be collected in the neighborhood is that of the breeding ground it would soon become for harmful mosquitoes that might spread deadly diseases like dengue.

Answer 2

Answer:

this is your answer