EASY
8th CBSE
IMPORTANT
Earn 100

Which of the following gives off heat and light when it burns and does not produce smoke?

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Important Questions on Coal and Petroleum

EASY
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 6 - Coal and Petroleum>EXERCISE>Q 1
_____ resources are available in limited quantities and can get exhausted due to continuous use.
EASY
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 6 - Coal and Petroleum>EXERCISE>Q 2
The substances that produce heat and energy on burning and can be used commercially are known as _____.
EASY
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 6 - Coal and Petroleum>EXERCISE>Q 3
During _____ deep tunnels called mine shafts are dug.
EASY
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 6 - Coal and Petroleum>EXERCISE>Q 4
The by-product which is formed in the form of gas during the manufacturing process of coke is called _____.
EASY
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 6 - Coal and Petroleum>EXERCISE>Q 5
Electricity which is obtained from coal is known as _____.
EASY
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 6 - Coal and Petroleum>EXERCISE>Q 6
The places where petroleum is present are called _____.
EASY
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 6 - Coal and Petroleum>EXERCISE>Q 7
The different constituents of petroleum with different boiling points are called _____.
EASY
8th CBSE
IMPORTANT
Sciwise - A coursebook of Science>Chapter 6 - Coal and Petroleum>EXERCISE>Q 1
Fossil fuels are classified as renewable as they keep forming under Earth's surface.