NSO Level 1- Science Olympiad (SOF) Class 8: Questions 974 - 976 of 1178

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Question 974

Appeared in Year: 2012

Question MCQ▾

A cook makes a pudding as shown.

The pudding is placed in a very hot oven until the top of the egg whites turns brown. it is then removed from the oven. Why does the ice – cream stay cold?

Image Shows the Egg Whites

Choices

Choice (4)Response

a.

The metal dish is a poor conductor of heat and stops the heat from reaching the ice cream.

b.

The metal dish is a good conductor of heat and conducts the heat away from the ice cream.

c.

Air is a poor conductor of heat and stops the heat from reaching the ice cream.

d.

Air is a good conductor of heat and conducts the heat away from the ice cream.

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Question 975

Question MCQ▾

Here are the details about some earthquakes occurred in the past. Select the most possible destructive one

Choices

Choice (4)Response

a.

2017 Uttarakhand earthquake that recorded 5.1 on the Richter scale.

b.

2005 Maharashtra earthquake that recorded 4.9 on the Richter scale.

c.

2015 Nepal earthquake that recorded 8.1 on the Richter scale.

d.

2001 Gujarat earthquake that recorded 7.7 on the Richter scale.

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Question 976

Question MCQ▾

Krishna needs a strong electrolyte. Which of the following would be the most suitable for her?

Choices

Choice (4)Response

a.

Sulphuric acid

b.

Nitrous acid

c.

Tap water

d.

Ascetic acid

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