In general, Comets have __________ orbits

A. Elliptical
B. Highly elliptical
C. Circular
D. Parabolic

Oxidation is a chemical reaction involving the __________?

A. Gain of electrons
B. Loss of electrons
C. Gain of protons
D. Loss of protons

At night, Plants intake __________ and release __________?

A. Oxygen – carbon dioxide
B. Carbon dioxide – oxygen
C. Oxygen – carbon monoxide
D. None of thesecarbon monoxide – oxygen

Urine is produced in __________?

A. Kidneys
B. Lungs
C. Large intestine
D. Liver

The planet which is easily visible from the Earth is?

A. Mercury
B. Venus
C. Mars
D. Jupiter

Biosensor is used to measure?

A. Blood glucose level
B. The body ph value
C. Amount of hemoglobin
D. Salinity in urine

The three elements needed for healthy growth of plants are __________?

A. N, p, k
B. N, c, p
C. N, k,
D. N, s, p

Name the branch of science which deals with the study of sound and sound waves?

A. Aeronautics
B. Acoustics
C. Aerostatics
D. Aetiology

The SI unit of Heat is________?

A. Watt
B. Volt
C. Joule
D. Newton

What is the molecular Weight of Nitric acid (HNO3 ) ?

A. 63.012 g/mol
B. 65.012 g/mol
C. 70.012 g/mol
D. 81.011 g/mol