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
C. Vitamin A
Explanation
Golden rice is a variety of rice (Oryza sativa) produced through genetic engineering to biosynthesize beta-carotene, a precursor of vitamin A, in the edible parts of rice.
Correct answer
C. 27
Explanation
27 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. Exosphere
Explanation
Exosphere is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. Anemometer
Explanation
Explained by: Javed Qasim (Haidri) Anemometer is a device used for measuring wind speed and direction Barometer is a scientific instrument that is used to measure air pressure in a certain environment Hydrometer is an instrument used for measuring the relative density of liquids based on the concept of buoyancy Hygrometer is an instrument used to measure the amount of water vapor in air, in soil, or in confined spaces
Correct answer
C. Alpha Centauri
Explanation
The Alpha Centauri system is the closest star system to our sun. On our sky’s dome, we see this multiple system as a single star and the third-brightest star visible from Earth. Alpha Centauri is part of a double, or triple, star system. The two main components are Alpha Centauri A and Alpha Centauri B.
Correct answer
A. Benjamin Franklin
Explanation
Benjamin Franklin is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. the shape of the earth is spherical
Explanation
the shape of the earth is spherical is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. Seasons
Explanation
Seasons is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Zinc
Explanation
Zinc is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. Electrons
Explanation
Electrons is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.