How is coal extracted from mountaintop removal mines? a.
Dynamite is used to create underground tunnels where miners go to extract the coal.
b.
Dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal.
c.
Coal in mountaintops is extracted by digging strips in the landscape to reach the coal.
d.
Placer deposits in mountain river bottoms are removed by sifting through sediment​

Dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal.

Explanation:

Mountaintop removal is also referred to as valley fill and this is a mining practice whereby mountain tops are removed, which then exposes seams of coal. In order to achieve this, about give hundred feet or more of the summit if the mountain can be removed in order to get the seams of coal.

Coal is extracted from mountaintop removal mines when dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. When this is done, then the earth from the top of the mountain will then be dumped in neighboring valleys.

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my best friend jeffrey has many unusual interests. (the story could be about each of the unususal interests)

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king lear is a play shakespeare wrote later. (it is just a sentence and doesnt give any idea or topic to be discussed in details.

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the answer is:

d. a story that frightened readers so much they would become suspicious of their surroundings

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explanation:

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