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4421: Which of the following statements are correct about the deposits of methane hydrate?

1. Global warming might trigger the release of methane gas from these deposits.
2. Large deposits of methane hydrate are found in Arctic Tundra and under the seafloor.
3. Methane in atmosphere oxidizes to carbon dioxide after a decade or two.

Select the correct answer using the code given below.

(a) 1 and 2 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3
4422: Cobalt-60 is commonly used in radiation therapy because it emits

(a) alpha rays.

(b) beta rays.

(c) gamma rays.

(d) X-rays.
4423: "Black holes" refers to

(a) Holes occurring in heavenly bodies

(b) Bright spots on the sun

(c) Collapsing object of high density

(d) Collapsing object of low density
4424: In a single throw of a pair of dice, what is the probability of getting a sum of 8 ?

(a) 8/12

(b) 1/36

(c) 4/36

(d) 5/36
4425: Which of the following is the correct group of Kharif crops?

(a) Rice, Millet, Maize, Cotton

(b) Groundnut, Bajra, Barley, Sorghum, Wheat

(c) Jowar, Bajra, Rice, Cotton, Jute, Gram

(d) Wheat, Barley, Gram, Mustard
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Other Government Exam MCQs

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