Answer:
B. Look around, since even a changed ecosystem is still an ecosystem.
Explanation:
Ecosystem refers to the interaction or relationship that exist between living organisms and its surrounding environment. This environment provides habitat, food and other needs to the organisms. If the people in the Midwest determine what kind of natural ecosystem they are in, they have to look around the environment they are living. This environment includes all the plants and animals that survive the change which occurs due to humans intervention.
The 0 degrees latitude is called The Equator.
The lowlands west of Australia´s eatern mountain range are drained by the Murray-Darling River system, with its main headwaters in the <em>Great Artesian Basin.</em>
The Eastern and Western Ghats are located in peninsular India in southeast Asia. The Eastern Ghats stretch around 900 miles along the country's eastern coast, which borders the Bay of Bengal, while the Western Ghats stretch around 1,000 miles along the country's western coast, which borders the Arabian Sea.