Search over 10,000 free study notes

Species richness, endemism and level of threat

Sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs

A natural disaster is defined as a hazardous natural event such as a tsunami, which leads to signficant damage to the human population. The economic damage often increases when wealthier countries are imp...

Global superpowers can be defined as states which are powerful on the global stage, both explicitly through their role in global institutions such as the UN and implicitly through their influence. Since t...

Waterfalls form where there is a layer of hard rock on top of a layer of soft rock.

The soft rock is eroded more quickly and undercuts the hard rock creating a ledge. The o...