Humans Make Many Alterations to Natural Ecosystems

Multiple Choice

Humans make many alterations to natural ecosystems.They turn natural areas into agricultural areas, build canals to transport offshore oil, cut down forests for lumber, build cities and highways, and more.How do these changes affect human societies?

A) They all have positive effects; humans live safer, healthier, more prosperous lives.
B) They all have positive effects; humans are meant to live with technology, not nature.
C) They involve trade-offs; for every benefit provided, an ecosystem service may be lost or altered.
D) They all have negative effects; the benefits are worth less than the ecosystem services lost.
E) They all have negative effects; humans are meant to live with nature, not technology.