bstyles416 bstyles416

13-01-2021
Chemistry

contestada

How is coal mined? A. surface mines only B. underground and open pit C.underground mines only

Respuesta :

ethanparsley ethanparsley

13-01-2021

Answer:

b

Explanation:

they have coal mines that go down deep into the earth but they also have mines called strip pits where they dig down and create a large creator in the earth insted of a mine shaft

Answer Link

imanii688 imanii688

13-01-2021

I believe the correct answer is B

Answer Link

Otras preguntas

What two major processes are involved in the oxygen cycle?

Nadine can send or receive a text message for 15 cents or get an unlimited number for 5 dollars. Write and solve an inequality to find how many messages she can

A passenger on a boat moving at 1.70 m/s on a still lake walks up a flight of stairs at a speed of 0.60 m/s , as shown in the figure . The stairs are angled at

What are two different ways to describe and label the layers of the Earth?

two identical freight cars roll without friction towards each other on a level track. one car rolls 2 m/s the other 1 m/s. after the cars collide they couple an

two identical freight cars roll without friction towards each other on a level track. one car rolls 2 m/s the other 1 m/s. after the cars collide they couple an

in an expression(8/9) squared (-81)+3/5dividedby-9/10

How many minutes are in 36 hours?

If the speed of an object is tripled, its kinetic energy will be

Was the Gold Rush a good or bad thing for the United States?