Question

9 what has happened to the worlds population since 1975?
○ it has dropped
○ it increased for a few years and then dropped
○ it has remained the same
○ it has increased
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Explanation:

From 1975 to the present, the world's population has been on an upward trend due to factors like improvements in healthcare (lower mortality rates, longer life expectancy) and relatively high birth rates in many regions during that period. So the correct option is the one stating it has increased.

Answer:

D. It has increased