Question 1 :-

The sun’s surface is called _____?

Chromosphere

Lithosphere

Thermosphere

Photosphere

Question 2 :-

The gas used in a refrigerator to cool water is_____?

Nitrogen

Carbon dioxide

Methane

Tetrafluoroethane

Question 3 :-

The study of nature is called____?

Science

Atom

Molecule

Element

Question 4 :-

Lack of _______ is a cause of Diabetes?

Sugar

Calcium

Vitamins

Insulin

Question 5 :-

Instrument used for measuring very high  temperature is ____?

Pyroscope

Pyrometer

Seismograph

Xylometer