Hello!
Your answer is The physical environment may affect human activities, and human activities may affect the environment.
Humans are limited by the physical environment - the physical environment is our source of resources, land, everything. For example, would you rather build your home on a steep mountain, or on grassy plains?
Human activities may also affect the environment. When you look at us, you can see many problems we cause which affect the environment. This includes releasing greenhouse gases into the environment, deforestation, etc.
Hope this helps!
Nkrumah's government borrowed heavily from the Soviet Union
Option c would be the most befitting one.
Some evidence that support that Brazil is a wealthy country is that it has peace and forsworn nuclear weapons. Brazil have as low Notional debts. It also stated that it has full employment and low inflation. Those are some reasons Brazil is a wealthy country.