How many chambers are in the human heart ?
C. 04 (Correct)
In humans, other mammals, and birds, the heart is divided into four chambers: upper left and right atria and lower left and right ventricles. Commonly…
How many eyes does a worm have?
D. None (Correct)
A worm has no arms, legs or eyes. There are approximately 2,700 different kinds of earthworms. Worms live where there is food, moisture, oxygen and a…
A mixture of sand and naphthalene can be separated by ________ ?
B. Fractional distillation
C. Sublimation (Correct)
D. None of these
mixture of sand and naphthalene can be separated by “Sublimation”.…
A slow-running pendulum clock can be speeded up by_______________?
A. Increasing the length of the rod
B. Increasing the weight of the bob
C. Reducing the length of the rod (Correct)
D. Reducing the weight of the bob
Which Planet is known as Watery Planet?
A. Earth (Correct)
If you look down at our planet from outer space, most of what you see is water; 71% of the planet’s surface is covered by ocean and it is…
Guava has the maximum amount of which Vitamin?
A. vitamin K
B. vitamin B
C. vitamin C (Correct)
D. vitamin D
Guava-fruit is an excellent source of antioxidant vitamin-C. 100 g fresh fruit provides 228 mg of this vitamin, more…
The Proportion of Hydrogen to Helium in the Sun is________?
B. 3:1 (Correct)
The sun is mostly composed of the elements hydrogen (H) and helium (He). By mass the composition of the sun is 75 percent hydrogen…