The atmospheric air is held to the Earth by?

A. Gravity
B. Winds
C. Clouds
D. Rotation of the earth

Lambert’s law is related to?

A. Reflection
B. Refraction
C. Interference
D. Illumination

Electrostatic precipitator is used to control?

A. Air pollution
B. Water pollution
C. Solid waste
D. Nosie pollution

In an MRI machine, which one of the following is used?

A. Sound wave
B. ‘x’-ray
C. Ultra-sound wave
D. Magnetic wave

Classification of Animals and Plants on the basis on chromosome number is called________?

A. Ecology
B. Taxonomy
C. Botany
D. None of these

Which one is non flowering plant _______?

A. Moss
B. Jasmine
C. Sun flower
D. None of these

The quantity of matter in an object is its ________?

A. Force
B. Mass
C. Weight
D. None of these

Microorganisms can only be seen with an equipment called ________?

A. Microscope
B. Telescope
C. Spectroscope
D. None of these

First antibiotic was extracted from a _________?

A. Bacteria
B. Virus
C. Fungus
D. None of these

Hepatitis and Polio is caused by________?

A. Virus
B. Fungus
C. Moss
D. None of these