Why can’t sea animals live in distilled water?
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Is demineralised or distilled water useful for drinking purposes? If not, how can it be made useful?
Water is an important part of life. It contains several dissolved nutrients that are required by human beings, plants, and animals for survival. Demineralised water is free of all soluble...
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Paheli had heard that rain water is as good as distilled water. So, she collected some rain water in a clean glass tumbler
Rainwater contains dissolved salts. This makes it a conducting solution. There are no dissolved salts present in the distilled water. Hence, rainwater can allow electricity to pass through it while...
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Transgenic animals are the animals in which a foreign gene is expressed.Such animals can be used to study the fundamental biological process
Study basic biological process- how gene are regulated, how they affect the normal functions of the body and its development. Transgenic cow, Rosie is the example for the second category.
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In a sea shore, the benthic animals live in sandy
a. Sandy, b. Muddy, c. Rocky
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In a sea shore, the benthic animals live in sandy,
a. Sandy, b. Muddy, c. Rocky
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You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution
(a) Put the red litmus paper turn by turn in each of the three test tubes. The solution which turns the red litmus paper to blue will be a basic...
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A student adds 2 mL of acetic acid to a test tube containing 2 mL of distilled water.
(A) a clear transparent colourless solution
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A student takes about 6 mL of distilled water in each of the four test tubes P, Q, R and S.
The correct answer is (C) R and S
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A student takes four test tubes marked P, Q, R and S of 25 mL capacity and fills 10 mL of distilled water in each.
The correct answer is (A) P and Q
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Sea divers go deep in the sea water with a mixture of which of the following gases (a) O2 and He
(a) Breathing mixture is (O2 + He)
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