NSO Level 1- Science Olympiad (SOF) Class 9: Questions 525 - 530 of 1128

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Question 525

Question

MCQ▾

A person invested in all ₹ 2200 at per annum simple interest partly. At the end of the year, he got the same interest in all the three cases. The money invested at is ________.

Choices

Choice (4)Response

a.

₹ 1200

b.

₹ 600

c.

₹ 1000

d.

₹ 800

Question 526

Question

MCQ▾

Identify a method that is used to control pests.

Choices

Choice (4)Response

a.

Summer ploughing

b.

Timely crop sowing

c.

Crop rotation

d.

Inter-cropping

Question 527

Question

MCQ▾

Oxygen is returned to the atmosphere in only one major process. Identify it.

Choices

Choice (4)Response

a.

Respiration

b.

Evaporation

c.

Combustion

d.

Photosynthesis

Question 528

Question

MCQ▾

Which of the following is not a green house gas?

Choices

Choice (4)Response

a.

Methane

b.

Ammonia

c.

Carbon monoxide

d.

Carbon dioxide

Question 529

Question

MCQ▾

The speed of a satellite revolving in a circular orbit around mars is . It takes 32h to complete one revolution. Calculate the radius of the orbit.

Choices

Choice (4)Response

a.

b.

c.

d.

Question 530

Question

MCQ▾

In a row of girls, Sushmita is eighth from the left and Reshma is seventeenth from the right. If they interchange their positions, Sushmita becomes fourteenth from the left. How many girls are there in the row?

Choices

Choice (4)Response

a.

26

b.

25

c.

28

d.

30

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