Consider the following statements:1.Methane is the primary contributor to the formation of ground-level ozone.2.In recent years, the amount of methane in the atmosphere has dramatically increased.3.The amount of energy absorbed by methane is lower than the carbon dioxide.Which of the statements given above are correct?

Q. With reference to “Comets” consider the following statements::
1.Comets are gas-filled objects that are remnants of the formation of the solar system.
2.Comets when burn give different colour of lights
3.Green comets come under the category of short-period comets.
Which of the statements given above are correct?

[A] 1 and 2 only

[B] 2 and 3 only

[C] 1 and 3 only

[D] 1, 2 and 3

Answer: A

Notes:

Explanation –

Statement 1 and 2 are correct. Comets are gas-filled objects that are remnants of the formation of the solar system. Comets when burn give different colour of lights such as blue or whiteish light or green.

Statement 3 is incorrect. Green comets come under the category of long-period comets because they are not easily spotted. The last time the green comet passed Earth was during the Upper Paleolithic period.

Source: ForumIAS

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