Answer:
Some demographic data sources are surveys, samples, census measurements, fieldwork, and observation. When using surveys, demographers research through asking questions to select members of the population.
Explanation:
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Answer:huh???????????? Wdym can you say it again
Explanation:
An invasive species is a species that did not originate in the land it resides or is not native.
Buffel grass is a weed that tends to be highly invasive.
Buffel grass is an example because it originally was grown in only tropical areas due to the fact that buffel grass can handle drought and heavy grazing. It has been brought to other areas and effects native species badly.
Answer:
I have question why is the graph?!
