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Science : Class 9 Science MCQ Practice Questions & Answers (Sanskrit) - ObjectiveMcq

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PracticeClass 9 ScienceScience

Science in Class 9 Science : Practice MCQ Questions & Answers with Explanations

53 practice sets · Page 1 of 3

Class 9 ScienceMediumScienceAgriculture Irrigation

1.

Which irrigation system involves the rotation of water supply through canals?

A

Canal irrigation

B

Drip irrigation

C

Basin irrigation

D

Sprinkler irrigation

Correct Answer:

A — Canal irrigation

Explanation:

Canal irrigation distributes water through a network of canals to agricultural fields.

Class 9 ScienceMediumScienceAgriculture Organic Farming

2.

Which factor is important in organic farming?

A

Use of synthetic fertilizers

B

Monocropping

C

Heavy use of pesticides

D

Use of organic manures and biofertilizers

Correct Answer:

D — Use of organic manures and biofertilizers

Explanation:

Organic farming relies on natural fertilizers and biofertilizers instead of synthetic chemicals.

Class 9 ScienceMediumScienceAgriculture Cropping Patterns

3.

Which cropping pattern involves growing crops in a specific sequence?

A

Crop rotation

B

Intercropping

C

Monocropping

D

Relay cropping

Correct Answer:

A — Crop rotation

Explanation:

Crop rotation involves growing different crops in a planned sequence to maintain soil fertility.

Class 9 ScienceMediumScienceAgriculture Crops

4.

Which crop is classified as a Kharif crop?

A

Barley

B

Maize

C

Mustard

D

Wheat

Correct Answer:

B — Maize

Explanation:

Maize is a Kharif crop grown during the rainy season.

Class 9 ScienceMediumScienceBiology Nervous Tissue

5.

Which tissue transmits electrical impulses in the body?

A

Connective tissue

B

Epithelial tissue

C

Muscular tissue

D

Nervous tissue

Correct Answer:

D — Nervous tissue

Explanation:

Nervous tissue transmits electrical impulses through neurons.

Class 9 ScienceMediumScienceBiology Animal Tissues

6.

Which tissue is responsible for movement in the body?

A

Muscular tissue

B

Epithelial tissue

C

Connective tissue

D

Nervous tissue

Correct Answer:

A — Muscular tissue

Explanation:

Muscular tissue contracts and relaxes to produce movement.

Class 9 ScienceMediumScienceBiology Plant Tissues

7.

Which vascular tissue conducts water in plants?

A

Phloem

B

Collenchyma

C

Xylem

D

Parenchyma

Correct Answer:

C — Xylem

Explanation:

Xylem transports water and minerals from roots to other parts of the plant.

Class 9 ScienceMediumScienceBiology Plant Tissues

8.

What type of meristem is found at the tips of roots and shoots?

A

Permanent meristem

B

Apical meristem

C

Lateral meristem

D

Intercalary meristem

Correct Answer:

B — Apical meristem

Explanation:

Apical meristem is responsible for growth in length at root and shoot tips.

Class 9 ScienceMediumScienceBiology Cell Organelles

9.

Which of the following statements about mitochondria is true?

A

Mitochondria produce energy in the form of ATP

B

Mitochondria are not membrane-bound

C

Mitochondria lack their own DNA

D

Mitochondria are found only in animal cells

Correct Answer:

A — Mitochondria produce energy in the form of ATP

Explanation:

Mitochondria generate ATP and contain their own DNA.

Class 9 ScienceMediumScienceBiology Cell Organelles

10.

Which organelle is present in animal cells but absent in most plant cells?

A

Lysosome

B

Chloroplast

C

Cell wall

D

Vacuole

Correct Answer:

A — Lysosome

Explanation:

Lysosomes are commonly found in animal cells and are rare in plant cells.

Class 9 ScienceMediumScienceBiology Cell

11.

What is an example of a prokaryotic cell?

A

Fungi

B

Bacteria

C

Plant cell

D

Protozoa

Correct Answer:

B — Bacteria

Explanation:

Bacteria are prokaryotic cells that lack a membrane-bound nucleus.

Class 9 ScienceMediumScienceBiology Cell

12.

What is the function of the plasma membrane?

A

Produces energy

B

Stores genetic material

C

Regulates entry and exit of substances

D

Provides shape to the cell

Correct Answer:

C — Regulates entry and exit of substances

Explanation:

The plasma membrane controls the movement of substances into and out of the cell.

Class 9 ScienceMediumSciencePhysics Sound

13.

What is the speed of sound in water?

A

1200 m/s

B

343 m/s

C

5000 m/s

D

1500 m/s

Correct Answer:

D — 1500 m/s

Explanation:

The speed of sound in water is approximately 1500 m/s.

Class 9 ScienceMediumSciencePhysics Sound

14.

Sound waves are examples of what type of waves?

A

Electromagnetic waves

B

Surface waves

C

Longitudinal waves

D

Transverse waves

Correct Answer:

C — Longitudinal waves

Explanation:

Sound waves are longitudinal because particles vibrate parallel to the direction of wave propagation.

Class 9 ScienceMediumSciencePhysics Conservation Of Energy

15.

Which of the following represents the best example of energy conservation?

A

A battery being charged

B

A pendulum swinging back and forth

C

Water freezing into ice

D

A car accelerating on a highway

Correct Answer:

B — A pendulum swinging back and forth

Explanation:

A pendulum continuously converts kinetic energy into potential energy and back.

Class 9 ScienceMediumSciencePhysics Power

16.

What is the power consumed by a 60-watt bulb in 2 hours?

A

120 Wh

B

60 Wh

C

120 W

D

720 W

Correct Answer:

A — 120 Wh

Explanation:

Energy consumed = Power × Time = 60 W × 2 h = 120 Wh.

Class 9 ScienceMediumSciencePhysics Potential Energy

17.

What is the energy possessed by an object due to its position or configuration called?

A

Thermal energy

B

Potential energy

C

Radiant energy

D

Kinetic energy

Correct Answer:

B — Potential energy

Explanation:

Potential energy is stored energy due to position or configuration.

Class 9 ScienceMediumSciencePhysics Work And Energy

18.

If the displacement is zero, what is the work done by the force?

A

Infinite

B

Negative

C

Zero

D

Positive

Correct Answer:

C — Zero

Explanation:

Work done is zero when there is no displacement.

Class 9 ScienceMediumSciencePhysics Gravitation

19.

Which of the following objects experiences gravitational force?

A

Only the Moon

B

Any object with mass

C

Only objects near the Earth's surface

D

Only Earth

Correct Answer:

B — Any object with mass

Explanation:

Gravitational force acts between all objects that have mass.

Class 9 ScienceMediumSciencePhysics Gravitation

20.

What is the relationship between weight and mass?

A

Weight is independent of mass

B

Weight is inversely proportional to mass

C

Weight is proportional to mass

D

Weight is proportional to volume

Correct Answer:

C — Weight is proportional to mass

Explanation:

Weight increases with mass because weight depends on gravitational force.

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