NSO Level 1- Science Olympiad (SOF) Class 7: Questions 229 - 233 of 593

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Question number: 229

» Fibre to Fabric

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MCQ▾

Question

Which of the following bacterium is responsible for causing Sorter’s disease to people working for sorter’s job in wool industry?

Job in wool industry

Job in Wool Industry

Job in wool industry

Choices

Choice (4) Response

a.

Bacillus subtilis

b.

Bacillus anthracis

c.

Bacillus thuringiensis.

d.

Escherichia coli

Question number: 230

» Fibre to Fabric

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MCQ▾

Question

The main cause of respiratory problems that workers in silk industry suffer is

Choices

Choice (4) Response

a.

Loud, deafening sound of machines running in the background.

b.

Cramped, damp, dark and poorly ventilated work space.

c.

Checking of the hot water to see whether the silk threads have loosened enough to be removed from the cocoons.

d.

Inhalation of vapours from the boiling cocoons and the diesel used to run machines.

Question number: 231

» Heat

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MCQ▾

Question

Heat always moves from object to object.

Choices

Choice (4) Response

a.

Colder to Warmer

b.

Bigger to smaller

c.

Smaller to bigger

d.

Warmer to colder.

Question number: 232

» Acids, Bases and Salts

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MCQ▾

Question

What is the chemical name of lime water?

Choices

Choice (4) Response

a.

Ca (OH) 2

b.

KOH

c.

NaOH

d.

NaCl

Question number: 233

» Nutrition in Plants and Animals

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MCQ▾

Question

Which of the following type of plant is given in the image?

Figure showing type of plant

Figure Showing Type of Plant

Figure showing type of plant

Choices

Choice (4) Response

a.

Insectivorous plant

b.

Herbivorous plant

c.

Autotrophic plant

d.

All of the above

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