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
D. dolphin
Explanation
dolphins are the Highly intelligent Mammals.
Correct answer
A. 1.034 g/cm3
Explanation
The density of raw milk depends on its composition and temperature and can usually – literature data vary slightly – be found in the range of 1.026 g/cm3 – 1.034 g/cm3 at 20°C.
Correct answer
D. Endotherm
Explanation
Endotherm is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Water expands on freezing
Explanation
Water expands on freezing is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. 15°
Explanation
The Earth rotates through 15° each hour so to rotate through 30° degrees it would take 2 hours.
Correct answer
B. Equal duration of day and night
Explanation
Equal duration of day and night is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. – 173 degrees Celsius at night to 127 degrees Celsius during the day
Explanation
– 173 degrees Celsius at night to 127 degrees Celsius during the day is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Bone-marrow
Explanation
Bone-marrow is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. Calcium sulphate
Explanation
Calcium sulphate is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Sulfuric acid
Explanation
Sulfuric acid is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.