NSO Level 1- Science Olympiad (SOF) Class 5: Questions 436 - 438 of 454

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Question 436

Appeared in Year: 2019

Question

MCQ▾

The graphs given below show change in the number of vehicles and trees for a time period in a city.

Graphs in the Level of Pollution

Which of the following graphs shows change in the level of pollution for this period of time?

Choices

Choice (4)Response

a.

Graphs in the Level of Pollution Choice-A

b.

Graphs in the Level of Pollution Choice-B

c.

Graphs in the Level of Pollution Choice-C

d.

Graphs in the Level of Pollution Choice-D

Question 437

Appeared in Year: 2019

Question

MCQ▾

Refer to the given pie chart representing composition of air. Identify gases X, Y and Z and select the incorrect statement.

Pie Chart Representing Composition of Air

Choices

Choice (4)Response

a.

X in the air is needed for burning.

b.

Z is made up of gases such as argon, neon, hydrogen, etc.

c.

Special bacteria present in soil convert Y in air into a form that can be used by plants.

d.

Both a. and c. are correct

Question 438

Appeared in Year: 2019

Question

MCQ▾

Read the given passage where few words have been italicized and select the correct option regarding it.

Deep inside the earth there is a hot molten rock called lava which comes up and collects in a chamber. When the pressure in the chamber builds up, lava finds a release through an opening or a crack called vent in the crust of the Earth called volcano. When lava erupts through volcano, it is called magma. Magma and ash that are thrown out collect and after repeated eruptions, form a mountain on cooling down. The hollow top of this mountainous volcano is shaped like a bowl, called crate.

Choices

Choice (4)Response

a.

The term vent should be replaced as it is incorrectly mentioned.

b.

The term crater should be replaced as it is incorrectly mentioned.

c.

T terms crater and vent should be interchanged.

d.

The terms lava and magma should be interchanged.

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