NSO Level 1- Science Olympiad (SOF) Class 12: Questions 36 - 37 of 60

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Question number: 36

» Biology » Ecology

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MCQ▾

Question

From the statements given below select those which are incorrect for acid rain.

  1. Sulphur and nitrogen oxides are released from industries, exhausts, power plants, etc.

  2. Rainfall and other precipitation forms with a pH of less than 5 refer to acid rain.

  3. Nitrogen and sulphur oxides undergo reaction with water in air and form nitric acid and sulphuric acid.

  4. There are harmful effects on human beings and animals by acid rain but no effect by plants.

Choices

Choice (4)Response

a.

2 and 4

b.

1 and 3

c.

4 only

d.

2 only

Question number: 37

» Biology » Biotechnology

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MCQ▾

Question

There is a table given below which shows the difference between Gene cloning and PCR, which is an incorrect difference from those given?

Choices

Choice (4)Response

a.

Table shows the difference between Gene cloning and PCR

The difference between Gene cloning and PCR

Parameter

PCR

Gene cloning

Error probability

Less

More

b.

Table shows the difference between Gene cloning and PCR

The difference between Gene cloning and PCR

Parameter

PCR

Gene cloning

Time for an experiment

2 - 4 days

4 hours

c.

Table shows the difference between Gene cloning and PCR

The difference between Gene cloning and PCR

Parameter

PCR

Gene cloning

Cost

More

Less

d.

Both b. and c. are correct

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