Answer:
Reason
Hydropower can also cause environmental and social problems. Reservoirs drastically change the landscape and rivers they are built on.
By immigration migrating to one location to the other
Answer:
To take benefits from the lands.
Explanation:
The main importance of the study of geomorphology is to study the landforms and used these lands for the economic welfare of human beings. Its study is also important for the socio-economic development to man because these lands used by the people for their benefits. Its study is also important because they also regulate the ecosystem, climate, weather and made environment suitable for humans to live.
Coral reefs are here in our world, and we have a duty to protect them. Things like fertilizers and pesticides are the things that are harming them, which comes from humans and causes the reefs to get sick.
If that answer isn't enough, then maybe this one will help?
Over fishing occurs when humans fish more than they should in a coral reef and eventually the fish can no longer thrive, and they simply disappear. Not only is this bad for the reef, because it too will then die, but them humans will no longer have that source of fish, which is what man groups of people and fisher man need to keep their businesses running and is where people get a main source of food. Fishing is what keeps many people alive and keeps smaller fishing villages running, and without it, they cannot survive either. <span />