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All India Exam - 2016
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Q5 of 59 Page 1

Forests are "biodiversity hot spot”. Justify this statement.

“Forests are 'biodiversity hot spots '. The statement is completely justified because forest consists of different life-forms such as bacteria, fungi, plants etc, and can be termed as biodiversity hot-spot as biodiversity of a particular area is defined by no. of species found in the place.


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3

Write one negative effect, on the environment, of affluent life style of few persons of a society.

4

"The magnification produced by a spherical mirror is -3". List four information’s you obtain from this statement about the mirror/image.

6

What is water harvesting? How can this technique help in the conservation of water?

7

On dropping a small piece of sodium in a test tube containing carbon compound 'X' with molecular formula C2H6O, a brisk effervescence is observed and a gas 'Y' is produced. On bringing a burning splinter at the mouth of the test tube the gas evolved burns with a pop sound. Identify 'X' and 'Y'. Also write the chemical equation for the reaction. Write the name ind structure of the product formed, when you heat 'X' with excess cone. Sulphur acid.

Questions · 59
All India Exam - 2016
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