NSO Level 1- Science Olympiad (SOF) Class 5: Questions 349 - 352 of 454

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Question 349

Question

MCQ▾

Which of the following statements are CORRECT about mixed agriculture?

Choices

Choice (4)Response

a.

A practice of growing crops without irrigation in areas.

b.

That involves planting two or more of plants separately in the same filed.

c.

That involves large monocultures of cash crops.

d.

All of the above

Question 350

Question

MCQ▾
Image Shows Burning Bulb

converts

Choices

Choice (4)Response

a.

Mechanical energy into sound energy

b.

Solar energy into mechanical energy

c.

Electrical energy into sound energy

d.

Electrical energy into heat energy

Question 351

Question

MCQ▾

________ is an imaginary line that runs from North Pole to the South Pole. It is tilted at an angle of 23.5 degrees.

Choices

Choice (4)Response

a.

Axis

b.

Orbit

c.

Equator

d.

All of the above

Question 352

Question

MCQ▾

Which of the following statements is true about using a hammer as a lever to pull a nail out of piece of wood?

A Hammer as Alever to Pull a Nail Out of Piece of Wood

Choices

Choice (4)Response

a.

The pulling action is changed to the vertical lifting action on the nail.

b.

The lever changes the direction of the force.

c.

We use larger force to pull out to the nail compared to pulling it out directly without using the hammer.

d.

The load is much nearer to the fulcrum than the effort.

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