NSO Level 1- Science Olympiad (SOF) Class 10: Questions 421 - 426 of 986

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Question number: 421

» Heredity and Evolution

Edit
MCQ▾

Question

Changes in organisms that help it survive and reproduce in its environment is known as

Choices

Choice (4)Response

a.

Selection

b.

Genetic load

c.

Gene Flow

d.

Adaptation

Question number: 422

» Periodic Classification of Elements

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MCQ▾

Question

The Mendeleev arranged how many elements in the periodic table?

Choices

Choice (4)Response

a.

64

b.

74

c.

60

d.

63

Question number: 423

» Electricity

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MCQ▾

Question

A strip of copper and another of germanium are cooled from room temperature to 30 K. The resistance of

Choices

Choice (4)Response

a.

Copper strip decreases and that of germanium increases

b.

Each of them decreases

c.

Each of them increases

d.

Copper strip increases and that of germanium decreases

Question number: 424

» Reproduction in Organisms

Edit
Matching-Pair▾

Question

Find the pair which does not match:

Choices

Choice (4)Response

a.

Grafting

Seedless Orang

b.

Budding

Cactus

c.

Cutting

Grapes

d.

Layering

Clematis

Question number: 425

» Life Processes

Edit
MCQ▾

Question

The Xylem in plant are responsible for

Choices

Choice (4)Response

a.

Transport of water

b.

Transport of food

c.

Transport of amino acid

d.

Transport of oxygen

Question number: 426

» Life Processes

Edit
MCQ▾

Question

Inspiration or breathing-out is an active process. Which of the following events are related to this process?

Choices

Choice (4)Response

a.

Contraction of diaphragm

b.

Relaxation of diaphragm

c.

Dropping rib cage

d.

None of the above

Developed by: