6 is: Mining for gold and planting cotton resulted in ecosystem destruction.
7 is: From the Mongol time frame on, at that point, we can talk about an Eurasian – if not a worldwide ... significance of exchange from the soonest times and, in contrast to the Chinese, they ... The significant exercises that Chinggis Khan gained from the difficulties of his initial ... This strategy became one that created a lot of ill will from the laborer positions.
The mining of gold and planting of cotton has a positive impact on the economy but negative impact on the ecosystem.
Explanation:
The mining of gold and planting of cotton has a positive impact on the economy but negative impact on the ecosystem in West Africa because mining of gold and planting of cotton crop makes the country wealthier due to high demand in the international market while on the other hand, mining of gold and plantation of cotton crop needs a clean piece of land so all vegetation must be removed around that mining site as well as for the cotton crop which destroys the habitat of organisms and disturbs ecosystem.
Genghis khan is the most power leader of the Mongol empire due to their conquests and fighting strategies.
Human activities such as mining and construction for building houses etc are responsible for the destruction of ecosystem whereas volcanic eruption and flood are the two ways that destroys ecosystem.
The Olmec civilization was prevalent during the Stone Age, so they mainly used basic materials to make their tools such as stones and wood. Obsidian was not abundant in their area, but it was sometimes available. However, it was not the main material used for their tools.
