The most abundant element in the Earth’s crust is _____?

A: Hydrogen

B: Oxygen

C: Carbon Dioxide

D: Silicon

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Oxygen

Which is the outermost planet in the solar system?

A: Pluto

B: Mercury

C: Neptune

D: Uranus

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Neptune

Which of the following cells are Colourless?

A: White blood cells

B: Red blood cells

C: Monocytes

D: platelets

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White blood cells

How many rows and columns are in the modern Periodic Table?

A: 12 columns and 9 rows

B: 18 columns and 7 rows

C: 7 columns and 18 rows

D: 25 columns and 15 rows

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18 columns and 7 rows

Oxidation is a chemical reaction involving the _____?

A: Loss of Electrons

B: Gain of Electrons

C: Gain of Protons

D: Loss of Protons

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Loss of Electrons

When a patient’s immune system becomes reactive to a drug, this is an example of?

A: Drug resistance

B: Super infection

C: Allergy

D: none

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Allergy

Which of these is a micronutrient of plants?

A: Nitrogen

B: Oxygen

C: Boron

D: Carbon

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Boron

Approximate age of milky-way is ___?

A: 15.5 billion years

B: 16.5 billion years

C: 13.5 billion years

D: 14.5 billion years

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13.5 billion years

Which of the following waves have smallest velocity in vacuum?

A: Sound

B: Ultraviolet

C: Infra-Red

D: Micro

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Sound

Which of the following is nutritional deficiency disease?

A: Cirrhosis

B: Albinism

C: Rabies

D: Pellagra

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Pellagra

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