Answer:
There were 1.2 billion persons in the year 1850
Explanation:
Answer:
the awnser for the first question i think is D because a funnel is used to clean water of contaminants.
Explanation:
the awnser for the second question is A.
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Answer:
all of the above
Explanation:
habitat loss, food availability, predators and disease are all limiting factors in terms of survival
