pls answer the question,pls i have a exam emergency but don't spam!!"!!!!!
Answers
Answer:
4)Uses of forests:
Forests help in the conservation of soil as their roots bind the soil and prevent the erosion of soil by water or wind.
They can break the speed of the wind and thereby help in reducing wind speed, in regions of high wind speed.
The forests are a good source of oxygen. The Amazon rainforests alone account for approximately 20% of the world's oxygen.
5) Rainwater harvesting is the accumulation and storage of rainwater for reuse on-site than allowing it to run off. Rainwater can be collected from rivers or roofs. The harvested water can also be used as drinking water, longer-term storage, and for other purposes such as groundwater recharge. It is essential to stop the decline in groundwater levels, arrest sea-water ingress, it prevent sea-water from moving landward, and conserve surface water run-off during the rainy season. Rainwater harvesting is considered a very reliable way to conserve water.
6) The following are five important measures taken to prevent soil erosion and ensure soil conservation:
Terrace Farming - On hilly slopes, terraces act as bunds and prevent the soil from being washed away by running water. Terrace farming is practiced with successful results in Japan, South-East Asia and the USA.
Shelter Belts - Peasants plant trees in several rows to reduce wind erosion. They are called ‘wind breaks’.
Contour Ploughing - Ploughing along contours on a slope prevents soil being washed away by rains or by surface run off. Contours act like bunds. Terraces are leveled into step-like small fields with even slopes. Contour ploughing is common in countries like Japan, China and some of the South-East Asian countries.
Strip Cropping - In this system, crops are grown in alternate strips of land in order to check the effect of the winds.
Construction of Dams - Rivers are known to cause soil erosion. Dams are built in the upper course of the rivers in order to control the erosion of soil.
Explanation:
hii can you be my friend please
and thank you so much you give more thanks
and congratulations dear friend keep smiling
always happy