Border line which separates outer space from Earth’s atmosphere is known as___________?

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Blood which heart pumps to lungs is__________?

A. deoxygenated blood B. lymph fluid C. atria blood D. oxygenated blood...

The 2018 Nobel Prize in Physiology or Medicine has been awarded jointly to James P Allison and Tasuku Honjo for their discovery of which cancer?

A. Chemotherapy B. Radiation C. Surgery D. Immunotherapy...

How many times the sun is bigger than the size of the earth?

A. 69 times B. 89 times C. 99 times D. 109 times...

Which of the following flower is called Queen of Water?

A. Rose B. Lilly C. Rafflesia D. Tulip...

Which of the following invention is oldest ?

A. Clock B. Microscope C. Barometer D. Cycle...