________ is an instrument used in determining the directions of movement of clouds.

A. Nephoscope
B. Stethoscope
C. Metroscope
D. None of the above

The _______ test is a color perception test for red-green color deficiencies.

A. Hemiplegia
B. Ishihara
C. Lalopathy
D. None of the above

The most abundant element in sea water is?

A. Chlorine
B. Sodium
C. Sulfur
D. Magnesium

Which of the following is a volcanic plateau?

A. Antrum plateau
B. Brazilian plateau
C. Anatolia plateau
D. Tibetan palteau

The Shortest air route from Moscow to San Francisco is?

A. Over the south pole
B. Over the north pole
C. Over the atlantic ocean
D. None of the above

Which instrument is used to measure the power of electric circuit ?

A. Wavemeter
B. Viscometer
C. Wattmeter
D. None of these

1 Coulomb = ___________ e.

A. 6×10-19
B. 6.25×1018
C. 1.6×1019
D. 6.25×10-18

Lux is a unit of __________?

A. Luminous flux
B. Illumination
C. Luminous intensity
D. Focus

Curie is a unit of measuring the intensity of ___________?

A. Radioactivity
B. Quantity of heat
C. Work or energy
D. Power

Newton metre is a unit of __________.

A. Substance
B. Length
C. Torque
D. Work