Please select a subject first
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Describe the four major types of coal.
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Write a short note on nuclear power.
Concept: undefined >> undefined
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Write True or False. Correct the false statement.
The distance between the two tracks in a broad gauge is 1 m.
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Write True or False. Correct the false statement.
Land use refers to the way a piece of land is used in the area.
Concept: undefined >> undefined
Fill in the blanks. One has been done for you.
| Distance on the map | Distance on the ground | Scale |
| 5 cm | 25 km | 1 cm = 5 km |
| 10 cm | 100 km | ______ |
| 2 cm | ______ | 1 cm = 30 km |
| ______ | 49 m | 1 cm = 7 m |
| 6 cm | 60,000 km | ______ |
Concept: undefined >> undefined
Match the following
| A | B | ||
| 1 | Scale | (i) | Words |
| 2 | Statement scale | (ii) | Straight Line divided into lengths |
| 3 | Linear Scale | (iii) | Curved line |
| 4 | ruler | (iv) | Ratio |
| 5 | twine | (v) | Straight Line |
Concept: undefined >> undefined
Choose the correct answer:
This is the ratio of the distance between two places on a map to the actual distance between the same two places on the ground.
Concept: undefined >> undefined
Choose the correct answer:
The distance between two points along a straight line can be measured by this method
Concept: undefined >> undefined
Choose the correct answer:
In this fraction, the numerator is always 1.
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Discuss the importance of the different layers of the atmosphere?
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State whether the following is true or false.
The numerator in a Representative Fraction expresses the actual distance between two places on the ground.
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What would happen to the earth if the atmosphere disappeared?
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State whether the following is true or false.
The distance along a curved line is measured by a ruler.
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We often leave the lights switched on and fans running when we are not in the room. We switch on the air-conditioning even though we don’t really need it. We insist on being dropped to school in the car every day. Thus, we waste valuable energy which is generally produced by burning coal and petroleum. As you know, the burning of these fuels release gases that pollute the atmosphere.
Make a list of the similar things that we do without realizing that we are destroying the environment. Think of the ways that we can behave differently.
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Fill in the blank
______ per cent of the atmosphere is made of nitrogen.
Concept: undefined >> undefined
Fill in the blank
The rate at which the temperature drops in the ____________ is 1°C per 165 metres.
Concept: undefined >> undefined
Fill in the blank
The _________________ is the layer of the atmosphere that help in radio transmission.
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The upper part of the thermosphere is called the ______.
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Describe the method by which the distance on a curved line is measured.
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How is a distance on a map measured by a piece of twine?
Concept: undefined >> undefined
