3861. Orbital period of the planet Mercury around the sun is ________?
✅ B. 88 days
Everyday Science MCQs – Page 194
3862. Trypsin is an enzyme which digests protein produced by________?
✅ C. Stomach
3863. Which planet is called “red planet”?
✅ B. Mars
3864. How many bones are in human Eyes?
✅ D. Seven
3865. Elements which have same number of protons but different number of neutrons are called as ____ ?
✅ B. Isotopes
3866. Vitamin B2 is also called as_____?
✅ B. Riboflavin
3867. The number of spark plugs needed in a diesel engine is_____?
✅ C. 0
3868. What is chemical symbol for Tungsten?
✅ D. W
3869. What is the effect of height increase over temperature?
✅ A. Temperature decrease
3870. Only male frog produce croacking sound because ____ ?
✅ D. Female frog have no larynx
3871. Which of the following slows down the formation of RBCs (Red Blood Cells)?
✅ D. Vitamin E
3872. Myopia is a disease connected with____?
✅ A. Eyes
3873. In Space, our Body__?
✅ A. Loses Weight
3874. Which of the following metal occurs in free state ____?
✅ B. Lead
3875. Units of electricity consumed by 2500 watt air-conditioner in one hour are____?
✅ C. 2.5 units
3876. The phases of the moon are partially the result of the_______?
✅
3877. The Sun produces most of its energy by________?
✅ B. Nuclear fusion
3878. Hailey’s comet is visible after every____?
✅ A. 76 years
3879. How long does it take for the moon to orbit the earth once?
✅ A. 27.3 days
3880. The lens used in a simple microscope is_______?
✅