Pick out the wrong statement.

Question

Options:

A . The concentric atmosphere layer just above troposphere is called stratosphere, which is rich in ozone

B . Mesosphere is characterised by very low atmospheric pressure and low temperature

C . Troposhere is a dusty zone containing water vapor and clouds

D . The radio waves used in the long distance radio communication are reflected back to earth by stratosphere

Answer: Option D

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More Questions on This Topic :

Question 1. Noise level heard at a distance of about 100 metres from a jet engine with after burner is about __________ decibels.....

Question 2. Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about _________....day in a noisy chemical plant is about __________ decibels.

Question 3. The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is....exposed for eight hours per day is about __________ decibels.

Question 4. Noise level inside a jet air liner in normal flight is about __________ decibels.....

Question 5. Noise emitted by a ventilation fan at a distance of 3 metres is about __________ decibels.....

Question 6. Noise level in a quiet private business office is about __________ decibels.....

Question 7. Noise level during normal conversation among men is about __________ decibles.....

Question 8. A standard test for determination of hardness in water is termed as __________ test.....

Question 9. TLV of aldrin in public water supply system is about __________ μg/litre.....

Question 10. Which of the following is the most lethal water pollutant?....

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