Q describe briefly how minerals which are found in rocks are made available for digestion in the human body?
Ans:-Minerals not only play an important role in our daily life but are also important for the human body and its digestion system. materials such as phosphorus,potassium,salt sulphur,iron and magnesium are present in our body.deficiency of any of these materials may cause diseases.
Q Describe briefly how nutrients in the soil get into plants?
A Generally soil consists of about 90% rock material and 10% humus. When rain water enters the earth,it dissolve soil nutrients to form a soil solution .Plants draw water and nutrients to make their food from this solution.
Q State two reasons why glaciers are a good source of water.
A:- glaciers are agood source of a continuous supply of water in the river and streams.Had there been no glaciers ,all the waters would have gone into oceans after rainy season.The rivers and streams would have remained dry for most of the time making life impossible for fishes and other marine animals.
Ans:-Minerals not only play an important role in our daily life but are also important for the human body and its digestion system. materials such as phosphorus,potassium,salt sulphur,iron and magnesium are present in our body.deficiency of any of these materials may cause diseases.
Q Describe briefly how nutrients in the soil get into plants?
A Generally soil consists of about 90% rock material and 10% humus. When rain water enters the earth,it dissolve soil nutrients to form a soil solution .Plants draw water and nutrients to make their food from this solution.
Q State two reasons why glaciers are a good source of water.
A:- glaciers are agood source of a continuous supply of water in the river and streams.Had there been no glaciers ,all the waters would have gone into oceans after rainy season.The rivers and streams would have remained dry for most of the time making life impossible for fishes and other marine animals.
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