Which of the following constituents of pollutant exhaust in hazardous to man?

The density of Air is_____________?

A. 0.225 kg/m3
B. 1.025 kg/m3
C. 1.225 kg/m3
D. 1.425 kg/m3

The ozone molecule contains which type of bonding__________?A. Dative bond
B. Covalent bond
C. Both A and B
D. Ionic Bond

 

What is the common name for the drug acetyl salicylic acid?

A. Paracetamol
B. Analgin
C. Aspirin
D. Penicillin

Arthritis is a disease of ?

A. Lungs
B. Blood
C. Disorder of the Joints
D. Liver

The sun appears red at sunrise and sunset while it appears white at noon, because

A. Of refraction
B. It is cooler at sunrise and at sunset
C. Of diffraction leading to red end of the spectrum reaching the earth.
D. Of Scattering of light due to dust particles and air molecules.