In earthworms, moist surface is necessary for oxygen to be absorbed and carbon dioxide to be given off.

False

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True

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Solution

The correct option is B True

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Similar questions

Which pigment is necessary in order for plants to convert carbon dioxide and water, in the presence of sunlight, into oxygen and glucose?

Which of the following statements are correct?

(i) Sunlight, carbon dioxide, chlorophyll and water are necessary for photosynthesis.
(ii) Oxygen is absorbed from the atmosphere during the process of photosynthesis.
(iii) Leaves carry out photosynthesis.
(iv) Proteins are made during photosynthesis.

Q. Assertion :

It necessary for electrode B to be continuously replaced.

Reason: At the positive anode, oxygen gas is formed and at high temperature of the electrolysis cell it burns and oxidises away the carbon electrodes to form toxic carbon monoxide or carbon dioxide.

[Note : Sketch shown is of an electrolytic cell used in the extraction of aluminium]

Q. Approximately seventy percent of carbon-dioxide absorbed by the blood will be transported to the lungs.

Q. The chemical used to absorb carbon dioxide during a test to check for the significance of carbon dioxide in photosynthesis is

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