NSO Level 1- Science Olympiad (SOF) Class 10: Questions 714 - 717 of 986

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Question number: 714

» Our Environment and Its Management

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MCQ▾

Question

Which of the following statements is incorrect for pyramid biomass?

Choices

Choice (4) Response

a.

Pyramids of biomass usually are a true pyramid shape

b.

The biomass in each trophic level is always less than the trophic level below

c.

When animals eat, only a small proportion of their food is converted into new tissue, which is the food for the next trophic level

d.

All a. , b. and c. are correct

Question number: 715

» Magnetic Effects of Electric Current

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MCQ▾

Question

Read the given statements for properties of magnetic lines and mark the correct option

Statement 1: Magnetic field lines originate from South Pole and end at North Pole

Statement 2: Magnetic field lines do not intersect each other.

Choices

Choice (4) Response

a.

Statements 1 and 2 are incorrect

b.

Only statement 1 is correct

c.

Only statement 2 is correct

d.

Statements 1 and 2 are correct

Question number: 716

» Our Environment and Its Management

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MCQ▾

Question

Which of the following is incorrect for some approaches towards the conservation of forests?

Choices

Choice (4) Response

a.

People should be made more aware about importance of forests

b.

No require hunting law

c.

Deforestation should be banned

d.

Question does not provide sufficient data or is vague

Question number: 717

» Our Environment and Its Management

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MCQ▾

Question

Which of the following method reducing the problem of waste disposal?

Choices

Choice (4) Response

a.

Using both method

b.

Using recyclable materials

c.

Using biodegradable materials

d.

Question does not provide sufficient data or is vague