Final answer:
Humans modify landscapes for economic reasons, such as farming and fishing. This can have both positive and negative impacts, benefiting some while harming others.
Step-by-step explanation:
Humans have modified their environments for economic reasons by transforming landscapes. Examples of these transformations include farming, fishing, and constructing dams.
These activities can have both positive and negative effects on the environment and different groups of people. While some benefit economically, others may suffer from environmental degradation and loss of natural resources.