Question

Multi Choice Type Question
effect

The key
(1) from the UN's World Population Prospects 2019
report is that national leaders must (2) their efforts to raise
education, health and living standards for people everywhere. India is
(3) to become the most populous country by 2027 surpassing
China, and (4) 1.64 billion people by 2050; the world as a whole
could be home (5) 8.5 billion people in just over a decade from
now, and the number could go up to 9.7 billion by mid-century. The
projections should be viewed in perspective, considering that alarmist
Malthusian fears of inability to provide for more than a billion people
on earth did not come true.

Question
Choose the appropriate word for the blank numbered (1)
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Answer 1

pls tell me of which subject it is