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Earn 100

The following measures are taken to preserve the top soil from erosion. Observe the pictures. Note down what you have learnt.

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Important Questions on Natural Resources

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Science>Biology>Natural Resources>Mineral Riches in the Soil
How does forest protect fertile soil? Write four measures adopted for the protection of forests.
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Science>Biology>Natural Resources>Mineral Riches in the Soil
Which of the following is not a natural resources?
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Science>Biology>Natural Resources>Mineral Riches in the Soil
What is soil erosion?
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Science>Biology>Natural Resources>Mineral Riches in the Soil
Soil erosion can be prevented by 
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Science>Biology>Natural Resources>Mineral Riches in the Soil
List any four human activities that are a cause of soil erosion.      
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Science>Biology>Natural Resources>Mineral Riches in the Soil
Soil erosion can weaken the soil's ability to hold water. It harms the topsoil and vegetation. What will be the effect of soil erosion on the insects and animals living under the soil? Will they benefit from soil erosion or will they be harmed?
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Science>Biology>Natural Resources>Mineral Riches in the Soil
What is soil erosion?
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Science>Biology>Natural Resources>Mineral Riches in the Soil
What is soil erosion? What are its effects?
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Science>Biology>Natural Resources>Mineral Riches in the Soil

Complete the concept map:

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Science>Biology>Natural Resources>Mineral Riches in the Soil
List four methods for soil conservation.    
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Science>Biology>Natural Resources>Mineral Riches in the Soil
Why is step farming common in hills?
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Science>Biology>Natural Resources>Mineral Riches in the Soil
Explain how soil erosion can be prevented.
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Science>Biology>Natural Resources>Mineral Riches in the Soil
Write two harmful effects of soil erosion.
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Science>Biology>Natural Resources>Mineral Riches in the Soil
What is soil erosion?
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Science>Biology>Natural Resources>Mineral Riches in the Soil

Look at the picture carefully and answer the question asked below.

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Where will the maximum soil erosion occur, in thick forests or bare lands? Why? Apart from providing us with food, what is the benefit of agricultural land?

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Science>Biology>Natural Resources>Mineral Riches in the Soil
What happens when rain falls on soil without vegetational cover?
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Science>Biology>Natural Resources>Mineral Riches in the Soil
List the methods of preventing soil erosion.
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Science>Biology>Natural Resources>Mineral Riches in the Soil
What is soil pollution? Write its sources. State two harmful effects of soil pollution.
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Science>Biology>Natural Resources>Mineral Riches in the Soil
Cotyledons are also called-
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Science>Biology>Natural Resources>Mineral Riches in the Soil
Among the given options, which one is not correct for the use of a large amount of fertilisers and pesticides?