NSO Level 1- Science Olympiad (SOF) Class 10: Questions 268 - 274 of 986

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Question number: 268

» Heredity and Evolution

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MCQ▾

Question

Disappearance of every individual of a species from the entire planet is called as

Choices

Choice (4) Response

a.

Fossil record

b.

Extinction

c.

Isolation

d.

Speciation

Question number: 269

» Periodic Classification of Elements

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MCQ▾

Question

Limitation of Doberiner’s Triads can be explained as:

Choices

Choice (4) Response

a.

Position given to isotopes

b.

Not proper position for hydrogen is given

c.

Identify only a few such triads and so the law could not gain importance

d.

None of the above

Question number: 270

» Carbon and Its Componds

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MCQ▾

Question

The International union of pure and applied chemistry devised a method of systematically naming organic compounds, which is known as the IUPAC system. According to this system what will be the name of given compound?

Choices

Choice (4) Response

a.

Ethane

b.

Propane

c.

Butane

d.

Methane

Question number: 271

» Reproduction in Organisms

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MCQ▾

Question

Where does fertilization occur in human females?

Choices

Choice (4) Response

a.

Cervix

b.

Uterus

c.

Oviduct

d.

None of the above

Passage

Read the passage carefully and answer Questions below.

Judge an equivalent resistance, when the following are connected in parallel

Question number: 272 (1 of 2 Based on Passage) Show Passage

» Electricity

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MCQ▾

Question

When are connected in parallel

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 273 (2 of 2 Based on Passage) Show Passage

» Electricity

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MCQ▾

Question

When are connected in parallel

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 274

» Life Processes

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MCQ▾

Question

Choose correct one.

Prostaglandins influence many body function, including

Choices

Choice (4) Response

a.

Reproduction

b.

Respiration

c.

Blood pressure

d.

All a. , b. and c. are correct