[5/20, 3:25 PM] Veena: Class-8
Geography , Ch-2 :
Land , Soil , Water , Natural Vegetation and Wildlife Resources.
1. Weathering
2. National Park
3. Biosphere Reserves
Ques/Ans
Q1:- Which are the 2 main climatic factors responsible for soil formation?
Q2:- Write any 2 reasons for land degradation today?
Q3:- Why is land considered an important resource?
Q4:- Name any 2 steps that government has taken to conserve plants and animals?
Q5:- Suggest 3 ways to conserve water.
Extra Questions
1. How is water an important resource?
2. Describe the method of soil conservation.
3. What is the threat to conserve vegetation and wildlife? What is the need to conserve them? How can we do this ?
Answers
1. Two main climatic factors responsible for soil formation are Temperature and Rainfall, wherein rainfall influences the rate of weathering and humus formation.
2.Two reasons for land degradation are deforestation and overuse of chemical fertilisers.
3.Land is considered an important resource because it is used for different purposes such as agriculture, forestry, mining, building houses, roads and setting up of industries.
4. Two steps that the government has taken to conserve plants and animals are:
Establishment of national parks, wildlife sanctuaries and biosphere reserves to protect our natural vegetation and wildlife. ...
Putting a ban on killing of lions, tigers, deer, great Indian bustards and peacocks.
5.Keeping the tap closed when not in use.
Check for the openings or leaks in water distribution pipes.
Make sure to use collected rainwater for gardening or washing purpose.
Always have a measure of how many buckets of water is wasted in a day and try to reduce.
1.It is important because it is needed for life to exist. Many uses of water include agricultural, industrial, household, recreational and environmental activities. Virtually all of these human uses require fresh water. ... It is estimated that 70% of world-wide water use is for irrigation in agriculture.
2.Soil conservation practices are tools the farmer can use to prevent soil degradation and build organic matter. These practices include: crop rotation, reduced tillage, mulching, cover cropping and cross-slope farming. farmers to increase soil organic matter content, soil structure and rooting depth.
sorry I don't know the answer for 3rd question hope this will help you
have a great day
Answer:
Weathering : It refers to the breaking up and decay of exposed rocks. This breaking up and decay are caused by temperature fluctuations between too high and too low, frost action, plants, animals, and even human activity. Weathering is the major process involved in the formation of soil. It takes millions of years to form soil by this process.
National Park : Areas reserved for
wild life where they can freely use
the habitats and natural resources.
Biosphere Reserve : Large areas of
protected land for conservation of wild
life, plant and animal resources and
traditional life of the tribals living in
the area.
Ques/ans
1. Temperature and rainfall are the two main climatic factors responsible for soil formation.
2. Deforestation and the indiscriminate use of chemical pesticides and fertilisers in agricultural lands are two factors contributing to land degradation.
3. Land is among the most important natural resources. It provides habitation to a wide variety of flora and fauna. Human beings use land for various purposes such as agriculture, forestry, mining, building houses and roads, and setting up industries.
4. Two steps that the government has taken to conserve plants and animals:
(a) Has set up national parks, wildlife sanctuaries and biosphere reserves for protecting natural vegetation and wildlife; for example, the Kaziranga National Park in Assam.
(b) Has banned the killing of lions, tigers, deer, great Indian bustards and peacocks. It has also prohibited the trade of the species of plants and animals protected under the international agreement CITES.
5. Three ways to conserve water:
(a) Rain-water harvesting
(b) Reducing wastage of water
(c) Replenishing ground water by promoting afforestation
EXTRA QUESTION
1. Water is an indispensable resource of life. Firstly water serves the most basic purpose of drinking, without which life is impossible. It is helpful in cleaning our bodies, clothes, and utensils. Farmers depend on water for irrigation. Water is also used in cooking food. Water is a source of electricity as well. Plants require water for their growth. Water is required for various industrial purposes in factories.
2. Some common methods of soil conservation are mentioned below: Mulching. Mulching is the process of covering the bare ground between plants with a layer of organic matter like straw. It contributes in retaining soil moisture.
Terrace Farming. Terrace farming is the method of farming in which broad flat steps or terraces are made on the steep slopes so that flat surfaces are available to grow crops 4 They reduce run-off and soil erosion. Intercropping. In intercropping, different crops are grown in alternate rows and are sown at different times to protect the soil from being washed away by rain.
Contour Ploughing. Ploughing parallel to the contours of a hill slope to form a natural barrier for water to flow down a slope is called contour ploughing.
Shelter Belts. Rows of trees that are planted in certain areas to check wind movement are called shelter belts. Contour Barriers. Stones, grass, and soil are used to build barriers along contours. Trenches are made in front of the barriers to collect water.
Rock Dams.
3. Forests and wildlife are an important resource. Climate change and human interferences in the animal kingdom can cause loss of natural habitat for plants and animals. Certain species have become endangered and many have become extinct now.
Poaching incidents contribute to their extinction. Plants and animals are an important part of the ecosystem. Plants provide food, oxygen and shelter to humans and animals. Animals provide us important products such as milk, meat, honey, etc. There exists a balance in the environment if we do not disturb the natural number of species living on the earth. A single extinction can affect the ecosystem badly. So animals and plants obviously need to be conserved. The government has introduced national parks, wildlife sanctuaries, and biosphere reserves for this purpose. Poaching should be severely dealt with. Indiscriminate killings need to be discouraged. Social awareness must be created about the importance of trees, social forestry. Students should be involved in vanamahotsavas at regional and community levels.
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