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1. What is the SI unit of the frequency?

A

Metre

B

Second

C

Watt

D

Hertz

2. Where was the world`s first oil well drilled?

A

Russia

B

India

C

The United States of America

D

China

3. Which of the following vitamins is also known as Riboflavin?

A

Vitamin B1

B

Vitamin B6

C

Vitamin B2

D

Vitamin C

4. Which of the following particles has the smallest mass?

A

Muon

B

Proton

C

Electron

D

Neutron

5. The Kigali agreement aims to phase out which of the following gases?

A

Hydrofluorocarbons

B

Nitrogen

C

Inert Gases

D

Oxygen

6. Magnetite is an ore of which metal?

A

Iron

B

Aluminium

C

Zinc

D

Copper

7. In human blood, the haemoglobin is present in ___

A

White Blood Cells (WBC)

B

Red Blood Cells (RBC)

C

Platelets

D

Lymph

8. Which of the following is an example of noble metal?

A

Tin

B

Platinum

C

Nickel

D

Iron

9. Which of the following types of radiation does earth emit?

A

Ultraviolet

B

Gamma

C

Visible

D

Infrared

10. Which of the following animals is an example of viviparous?

A

Human

B

Penguin

C

Hen

D

Octopus

11. The property of metals by which they can be beaten into thin sheets is called _

A

Malleability

B

Ductility

C

Luster

D

Sonorous

12. Land breeze is an example of which type of heat transfer mechanism?

A

Convection

B

Insulation

C

Conduction

D

Radiation

13. Which of the following tides has the least difference between high and low tides?

A

Ebb Tide

B

Flood Tide

C

Spring Tide

D

Neap Tide

14. Which of the following countries is known as Country of Winds?

A

Denmark

B

India

C

Argentina

D

England

15. Which of the following layers lies immediately above the troposphere?

A

Stratosphere

B

Thermosphere

C

Mesosphere

D

Ionosphere

16. Basic solution turns red litmus paper into which colour?

A

White

B

Black

C

Green

D

Blue

17. In which of the following population interaction, both species get harmed?

A

Parasitism

B

Commensalism

C

Amensalism

D

Competition

18. Lanthanides belongs to which block of elements in the modern periodic table?

A

s-block

B

f-block

C

p-block

D

d-block

19. Which of the following is an example of simple permanent tissue in plants?

A

Sclerenchyma

B

Phloem

C

Sieve Tube

D

Xylem

20. Which of the following instruments is used to measure the speed of wind?

A

Anemometer

B

Seismometer

C

Barometer

D

Hydrometer