Question

1. currently, the average number of children born per woman worldwide is __, and the replacement rate is __.

options:
a. 3.1; 2.45
b. 5; 2.1
c. 2.45; 2.1
d. 2.1; 5
e. 2.1; 3.1

1. the drop in infant mortality worldwide is mostly due to

options:
a. vaccines.
b. safe water supplies.
c. air quality.
d. a and b
e. a, b, and c

Explanation:

Question 33 (Fertility and Replacement Rate)

The current global total fertility rate (TFR) is around 2.45 children per woman, and the replacement rate (to maintain population) is about 2.1 (considering mortality). So the average number of children per woman (TFR) is ~2.45, replacement rate ~2.1.

Vaccines (A) reduce infectious disease deaths, safe water (B) reduces water - borne illness deaths, and better air quality (C) reduces respiratory - related infant deaths. All these factors (A, B, C) contribute to the drop in infant mortality worldwide.

Answer:

C. 2.45; 2.1

Question 34 (Infant Mortality Drop)