I think the answer is C i dont know whether thats correct or not ( I apologize if the answer is wrong) !!
Answer:
D. 30%
Explanation:
Canada is the second largest country in the world with forest or other wooded land making up 40% of its 979 million hectares. Canada's forest cover represents 30% of the world's forest and 9% of the world's overall forest cover.
English please? I dont know portuguese.
Highwall mining is often used when excavating an open-pit mine becomes too expensive. There are many advantages over underground mining, including the fact that it is both more cost-effective and involves less lead time.