MCQs
Read every question, see the correct answer, and understand the explanation at your own pace. Study mode has no timer and no negative marking.
Correct answer
A. 20 minutes
Explanation
20 minutes is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. 10 hours
Explanation
10 hours is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. 1000
Explanation
1000 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. Epidemiology
Explanation
Epidemiology is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. Hydrogen
Explanation
Greenhouse effect – Gases that trap heat in the earth’s atmosphere are known as Greenhouse Gases. Greenhouse Gases are Carbon Dioxide, Methane, Nitrous Oxide (N2O), Water Vapour, and Chlorofluorocarbons. Greenhouse Gases are capable of trapping the out-going infrared radiation from the earth’s surface thereby causing the Greenhouse effect. In the above question other than hydrogen gas, rest all the gases have the capability of trapping the heat rays reflecting from the earth. Hence Hydrogen is correct.
Correct answer
A. Acetylene and oxygen
Explanation
Acetylene and oxygen is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. Sublimation of iodine
Explanation
Sublimation of iodine is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. Nervous System
Explanation
Nervous System is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. Copernicus
Explanation
Copernicus is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. Mercury
Explanation
Mercury is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.