The answe is: D. All of the above
Answer:
Cualidad de lo que es vulnerable.
B. Their remote location has kept out invaders.
Answer: Mining and quarrying can be very destructive to the environment. They have a direct impact on the countryside by leaving pits and heaps of waste material. The extraction processes can also contaminate air and water with sulfur dioxide and other pollutants, putting wildlife and local populations at risk.