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Subject: Science, asked on 17/11/15

define soil

Subject: Science, asked on 25/10/15

Write 5 ways to check soil erosion ?

Subject: Science, asked on 10/11/12

what are the three layers of soil?

Subject: Science, asked on 7/3/15

 DEFINE WATER PERCOLATION RATE ???

Subject: Science, asked on 25/10/12

Why is soil regarded as a non renewable source when it is continuously made by weathering?

Subject: Science, asked on 16/10/11

  1. what is the difference  between  loamy and   sandy  soil  ???

Subject: Science, asked on 21/12/13

what is the full form of NGO?

Subject: Science, asked on 15/8/13

Trees help in soil formation as well as in its protection.explain.

Subject: Science, asked on 12/1/13

define percolation tanks

Subject: Science, asked on 30/9/12

 what is the importance of soil?

Subject: Science, asked on 21/10/12

Name any two soil pollutants ? How does it affect the soil .

Subject: Science, asked on 23/3/13

what is soil pollution?

Subject: Science, asked on 10/1/13

what is biogas? write the advantages of using biogas .

Subject: Science, asked on 8/11/15

Why during a hot summer day air above the land is shimmering?

Subject: Science, asked on 16/4/15

explain how soil pollution and soil erosion could be prevented.

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