NSO Level 1- Science Olympiad (SOF) Class 9: Questions 521 - 526 of 1123

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Question number: 521

» Biology » Improvement in Food Resources

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MCQ▾

Question

Disease cannot spread from one row of crops to the other. Which of these methods has to be implemented to have this advantage?

Choices

Choice (4) Response

a.

Intercropping

b.

Mixed cropping

c.

Crop-rotation

d.

All of the above

Question number: 522

» Chemistry » Structure of the Atom

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MCQ▾

Question

In the atom of an element, 7 electrons are present in the outermost shell. If it acquires inert gas configuration by receiving more electrons, charge of the ion formed will be

Choices

Choice (4) Response

a.

1-

b.

7+

c.

7-

d.

1+

Question number: 523

» Chemistry » Structure of the Atom

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MCQ▾

Question

Atoms of the same element with same atomic number but different mass numbers are called

Choices

Choice (4) Response

a.

Isotopes

b.

Ions

c.

Isobars

d.

Question does not provide sufficient data or is vague

Question number: 524

» Biology » Improvement in Food Resources

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MCQ▾

Question

The farmer’s purchasing capacity for agricultural inputs decides

(i) Cropping system

(ii) Financial stability

(iii) Preference of crops

(iv) Production practices

Choices

Choice (4) Response

a.

(iii) and (iv)

b.

(i) and (iv)

c.

(i) and (ii)

d.

(i) and (iii)

Question number: 525

» Mental Ability

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MCQ▾

Question

A person invested in all Rs. 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.

Rs. 1200

b.

Rs. 600

c.

Rs. 1000

d.

Rs. 800

Question number: 526

» Biology » Improvement in Food Resources

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MCQ▾

Question

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

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