Answer:
D
Explanation:
The others arent even relevent to the question.
<span>B. Aggregate. Stone, gravel, and other bits of crushed rock are known as the 'aggregate' in Earth Science, as they are made up of the aggregation of extraneous bits of stone. They are a nonrenewable resource which we rarely think about, but which is utilized for a number of different industries and day-to-activities. It can be man made as well as naturally occurring.</span>
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.
Ichnology is the study of the trace fossils. Trace fossils are evidences that are left by the organisms and examples would include burrows, coprolites, imprints and footprints.Hope these are the answers and would then be of help in this assignment.
