Consider the following statements about open cast mining.
1. Minerals that lie at shallow depths are taken out by removing the surface layer
2. Is an ancient method of mining in South Asia.
Which of the following is/are correct about open cast mining?

A. 1 only

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B. 2 only

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C. Both

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D. None

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Solution

The correct option is A A. 1 only
100. A

Minerals that lie at shallow depths are taken out by removing the surface layer; this is known as open-cast mining

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Q70. Consider the following statements about Tar sands.

1. It is a combination of clay, water and bitumen.

2. Open Pit Mining technique is used for mining Tar sands.

3. The processing of Tar sands involve minimal environmental impacts.

Which of the above statement(s) is/are correct?

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