NSO Level 1- Science Olympiad (SOF) Class 8: Questions 263 - 268 of 1076

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Question number: 263

» Microorganisms

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MCQ▾

Question

Which of the following statements is not true about viruses?

Choices

Choice (4)Response

a.

They can only be seen with a powerful microscope

b.

They are active inside the living cells only.

c.

They are the smallest of all microorganisms

d.

They can be seen with a simple microscope

Question number: 264

» Reproduction in Animals

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MCQ▾

Question

Growth hormones are produced in our body by

Choices

Choice (4)Response

a.

Pancreas

b.

Pituitary

c.

Adrenal

d.

Question does not provide sufficient data or is vague

Question number: 265

» Crop Production and Management

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MCQ▾

Question

Direction: Observe the picture carefully and answer the questions

The statements common to these insects are

Image of the insects

Image of the Insects

  1. They are predators of pests.
  2. They are farmer’s friends.

  3. They destroy the crops.

  4. They are farmer’s enemies.

Choices

Choice (4)Response

a.

2 and 3

b.

2 and 4

c.

3 and 4

d.

1 and 2

Question number: 266

» Microorganisms

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MCQ▾

Question

An animal disease caused by microbes is

Choices

Choice (4)Response

a.

Mosaic disease

b.

Measles

c.

Citrus canker

d.

Anthrax

Question number: 267

» Microorganisms

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MCQ▾

Question

The acid present in curd is

Choices

Choice (4)Response

a.

Citric acid

b.

Nitric acid

c.

Ascetic acid

d.

Lactic acid

Question number: 268

» Microorganisms

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MCQ▾

Question

Vaccine for small pox was discovered by

Choices

Choice (4)Response

a.

Albert Einstein

b.

Edward Jenner

c.

Lois Pasteur

d.

Alexander Fleming

Developed by: