Given below are two statements, one labelled Assertion (A) and the other labelled Reason (R).
Assertion (A): The existence of human life on Venus is highly probable.
Reason (R): Venus has an extremely high level of carbon dioxide in its atmosphere.
Choose the correct answer.
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → A is false, but R is true.
Assertion (A): The existence of human life on Venus is highly probable. — Incorrect. Venus has a surface temperature of about 465°C, an atmospheric pressure about 90 times that on the Earth and clouds of sulphuric acid, so human life cannot exist there.
Reason (R): Venus has an extremely high level of carbon dioxide in its atmosphere. — Correct. About 96 percent of the thick atmosphere of Venus is carbon dioxide, which traps heat and makes it the hottest planet.