Chapter 8.5

Question 1

What is open cut mining?

Answer 1

Open cut is when the ore body is close to the surface. Open cut mining is also know as surface mining.

Question 2

What is underground?

Answer 2

Underground mining is used if the ore body is deep, fairly concreted and confined to small space or in narrow veins.

Question 3

Open cut mining advantages

Answer 3

• much cheaper
• not as dangerous
• easier to operate
• useful when the recourse is spread across a wide area.

Question 4

What is ore?

Answer 4

Ore is a rock contains valuable recourse.

Question 5

Open cut mining disadvantage

Answer 5

• destroy the natural environment

- can’t use it for certain recourses

Question 6

Underground mining advantages

Answer 6

• less danger to the environment
• can reach very deep
• useful when recourse is highly concentrated

Question 7

Underground mining disadvantages

Answer 7

• more expensive
• very company requires lots of planning and infrastructure
• safety hazed 20-30 people get injured in mines every year