Question

Why does the teacher keep telling us not to let water collect anywhere in the neighbourhood?

Answer 1

Hint:Collecting stagnant water from anywhere in the neighbourhood poses a great threat to the well being of mankind. Water accumulation results when water stops circulating. Standing water may be a massive environmental concern.

Complete step by step answer:
Though stagnant water is harmful to human beings, it is useful for growth and survival of many flora and fauna. Many species thrive in flowing water, whereas others tolerate stagnant water, such as lotuses. Numerous anaerobic bacteria are mainly encountered in stagnant water. Water stagnation can happen on the surface of the soil as well as in the macro spores just below the surface. In this scenario, stagnation can not be seen, but it is undesirable because it destroys the valuable layer for the growth of the crop. In productive soil, water stagnation is meant to be a temporary phenomenon, its normal short and medium term may not affect soil fertility and therefore does not cause damage to crops. Malaria and dengue were amongst the potential problems of stagnant water that can become a breeding ground for mosquitoes that transmit these diseases. Stagnant water can be dangerous to drink because it provides a stronger incubation than clean water for many kinds of bacteria and parasites. Stagnant water is contaminated with human and animal faeces, particularly in deserts or other low rainfall areas. If a stagnant water is left unnoticed for a period of six months, then it will totally become a bacterial community with increased cell count.

Additional Information:
We have to insist on taking measures to prevent the stagnation of water. Some possible solutions that can be considered are removal of the surface, which is the primary cause of water to be stagnant. The objective of the second procedure is to strip the lining in order to avoid the reestablishment of the working surface. In addition, the application of the plough causes a drop in organic matter, which is the cornerstone of the third activity. The rise in organic matter (in particular humus) in soil enhances the formation of macro spores that in turn helps in holding the soil deep inside rather than standing still.

Note:
Suppose, if water stagnation has a long-term period, this could cause severe alterations. Long-term water persistence is indeed a land which does not have enough porosity according to agricultural needs. In attempting to comprehend how to cope with this problem, it is important to get accustomed with the relationship between soil and water through the comprehension of some agriculture principles.