Answer:
Sulfur: gunpowder and medicines
copper: coins and jewelry; and in coins
diamond: drill bits and saws
Explanation:
True ...........................
Answer:
understanding the structure of the earth is important to developing the ecosystem and allowing favorable conditions to occur naturally
Because the index fossils help with approximate yearing and rock layers tell which is older and ypunger
The human activity in China's climate has had huge impact for the past few decades in particular. We can see it in two ways:
1. Negative effects; these are consisted in changing the climate on local level, but the problem is that those local changes are on lots of places. China has huge cities, the industry is the biggest in the world and not very caring about the environment, so the cities and their close surroundings have their own unique micro climate mainly because of the enormous pollution that changes the air structure and because of the overheating of all the infrastructure in the cities, as well as stopping the natural wind flows.
2. Positive effects; these can be seen in the Inner Mongolia province in China that is mainly desertous region. The scientists and the local population with mutual collaboration in the past few years are turning the desert into a green territory by using plants that are evergreen but also have no problems with extreme droughts and lack of water.
