What is known the cold and dense air blowing down from the mountain slope during the night__________?

A. Anabatic wind
B. Katabatic wind
C. Lue wind
D. None of these

Radioactivity was discovered by __________?

A. Kelvin
B. Thomson
C. Rutherford
D. Bacquerel

The Sun is a __________?

A. Star
B. Planet
C. Asteroid
D. Meteor

The SI unit of “pressure” is _________.

A. Pascal
B. Joule
C. Tesla
D. Henry

The most densest substance on the Earth is __________.

A. Platinum
B. Copper
C. Steel
D. Osmium

Being Myopic means you have problem in seeing ______________?

A. Distant objects clearly
B. Close objects clearly
C. Both a and b
D. Distant and close objects look unclear

Hypermetropia or Hyperopia means being able to see__________________?

A. Distant objects opaque
B. Distant object clearly
C. Close objects unclear
D. Close objects clearly

The salinity of sea water is determined by the amount of common salt (Sodium Chloride) in __________ of sea water.

A. 1 gram
B. 10 grams
C. 1 kg
D. 10 kg

Which of the following is most elastic ?

A. Steel
B. Rubber
C. Glass
D. Sponge

Instrument that measure the electric force ________?

A. Hygrometer
B. Hydrometer
C. Ammeter
D. Voltmeter