Ozone layer prevents ______________ radiation from entering the atmosphere?

7 years ago

A. Infra-red B. Ultraviolet C. X-rays D. Gamma rays E. None of these

World Tuberculosis Day is observed on ____________?

7 years ago

A. 21st March B. 24th March C. 26th March D. 25th March

Total volume of blood in a normal adult human being is

7 years ago

A. 5-6 liters B. 3-4 liters C. 8-10 liters D. 10-12 liters

Short-sightedness can be corrected by using ___________?

7 years ago

A. Convex lens B. Concave lens C. Convex-concave lens D. Concave-convex lens

Bats can also fly in dark because they are capable of taking the help of _________?

7 years ago

A. Ultraviolet Waves B. Ultrasonic Waves C. Electromagnetic Waves D. Special Retina

Which of the following atmospheric layers help in radio communication?

7 years ago

A. Exosphere B. Ionosphere C. Troposphere D. Stratosphere E. Ozone layer

Malaria is a disease which effects the____________?

7 years ago

A. Heart B. Lungs C. Spleen D. Kidneys

When was the United Nations headquarters start to built?

7 years ago

When was the United Nations headquarters start to built? A. September 1948 B. September 1949 C. September 1950 D. September…