<em>The correct choice is option B. Growth</em>
The American demographer Warren Thompson observed changes, or transitions, in birth and death rates in industrialized societies over the previous 200 years, as a result of such observations he proposed, in 1929, a theory called Demographic transition (DT). This theory explains the transition from high birth and death rates, in pre-industrial economic systems, to lower birth and death rates in industrialized economic systems.
This demographic transition theory involves four stages. Specifically,<em> the second stage is characterized by a fall in death rates due to improvements in food supply and sanitation, which leads to an increase (or growth) in population as well as in life expectancies. </em>
<span>The concept of warrant in logic refers to "the evidence that supports one's claims".
</span>Evidence is likewise alluded to as help or certainties. Evidence is only that: certainties. Not at all like cases, realities are undeniable. You may have heard the excess expression "true facts." The expression is repetitive on the grounds that all realities are valid: that is the thing that makes them actualities. Evidence is the thing that you use in enticing composition to help the cases that you exhibit. Hope this helps!
Answer:
They provide a habitat for fish, frogs and other animals.
Economists focus on what people do , not their thought processes
