If in a developed nation the width of the bars for an age group of 35 to 40 years decreases for three successive censuses, which one of the following statements is likely to be true?
A) There has been high emigration in that age group.
B) The fertility has increased in that age group.
C) The fertility has decreased in that age group.
D) Other age groups have increased their fertility to compensate for the 35 to 40 age group.
Question 2
Good health in the modern world, with few cases of bacterial infection, is largely the result of
A) the development and widespread use of new immunizations.
B) clean water supplies and proper treatment of sewage.
C) widespread use of bleach, antibiotics, and antibacterial soaps.
D) frequent bathing and washing of clothing and dishes.
The 2012 U.S. elections were some of the angriest the nation had seen. The count
Firing Rate of Individual SCN Neurons in a Tissue Culture Color bars have been added to emphasize th
The 2012 U.S. presidential campaign rang with “get tough” cries to end Iran’s nuclear capacity and c
skeletal muscle consists of a group of fibers held together by connective tissue. It is enclosed in ...
Baby's eyes are developed in 6th week of pregnancy
When a 2.75-kg fan, having blades 18.5 cm long, is turned off, its angular speed decreases ...