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Crude oil reserves are limited all over the world

‘‘Crude oil reserves are limited all over the world. If people continue to extract it at the present rate, the reserves would last only 35 - 40 years more.’’ Explain any three ways to solve this problem.

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2
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How can solar energy solve the energy problem to some extent in India

**How can solar energy solve the energy problem to some extent in India? Give your opinion.**

3
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In the present day energy crisis what steps will you like to take for saving energy

**In the present day energy crisis what steps will you like to take for saving energy?**

4
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How is the mining activity injurious to the health

**How is the mining activity injurious to the health of the miners and environment? Explain.**

5
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Describe Characteristics Of Durg-Bastar-Chandrapur Iron Ore Belt

**Describe Characteristics Of Durg-Bastar-Chandrapur Iron Ore Belt?**

6
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Why Is It Necessary To Conserve Mineral Resources? Explain Ways To Conserve

**Why Is It Necessary To Conserve Mineral Resources? Explain Ways To Conserve**

Amit, standing on a horizontal plane, finds a bird flying at a distance of 200 m
A solid iron pole consists of a cylinder of height 220 cm and base diameter 24 cm
Prove that Trigonometry Relation #05
Prove that Trigonometry Relation #04
Which term of the Arithmetic Progression –7, –12, –17, –22
How many terms of the Arithmetic Progression 45, 39, 33
In a class test, the sum of Arun’s marks in Hindi and English is 30
When they work alone, B needs 25% more time to finish a job than A does