Twinkling of stars is caused by ?

Related Mcqs:

Approximately, how many times each day do our heart valves open and close normally?

A. 10,000 B. 1,00,000 C. 1,50,000 D. 2,00,000...

As a result of which treaty, ozone hole in Antarctica is slowly healing?

A. Koyoto protocol B. Ottawa treaty C. Montreal protocol D. Oslo Accord...

Trypsin is an enzyme which digests protein produced by_____________?

A. Liver B. Pancreas C. Stomach D. Small intestine...

White coal is ?

A: Uranium B: Hydro-electricity C: Ice D: Salt...

Which blood cells are called ‘Soldiers’ of the body ?

A. WBC  B. Platelets C. RBC D. All of the above...