Which of the following diseases mainly spreads through air?
A) Tuberculosis
B) AIDS
C) Typhoid
D) Malaria
1 Answers
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why does the smell of incense stick spreads faster than the perfume
The molecules of the sticks fits between the spaces in the molecules of the atmosphere. So, it spreads quickly.
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Which of the following is the best method to control plant diseases ?
B) The selection of disease resistant varieties
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Which of the following diseases are affected with virus?
C) Conjunctivitis, Chicken pox
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Which of the following would be followed by you to keep away from the diseases?
D) all above because all are correct answers
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Which of the following questions are suitable to clarify your doubts on contageous diseases?
D) What precautions do we follow to avoid contaminated diseases?
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What is the reason for growing of roots deeply and spreads more in the Xerophytes?
B) Water availability is less in sandy soil
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Give reasons for the following observations (a) The smell of lighted incense stick spreads several metres away. (b) A liquid has a fixed volume but no
(a) This happens because of diffusion.
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Name few diseases which are transmitted by air.
Common cold, chicket pox, tuberculosis, measles.
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As a result of respiration, …………. enters the blood in the body and spreads to all parts of the body.
Correct option is (c) oxygen
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Germs of diseases like conjunctivitis spreads through ………. .
Correct option is (a) air
2 Answers 1 views