The number of people who are too young or too old to work compared to the number of people in their productive years is called the

A) social dependence rate.
B) productive capacity ratio.
C) elderly support ratio.
D) infant mortality rate.
E) dependency ratio.


Answer: E

Environmental & Atmospheric Sciences

You might also like to view...

The blue color of the sky is due to ____

A) selective scattering of visible light by air molecules B) the filtering effect of water vapor in Earth's atmosphere C) reflection of sunlight off the Earth's oceans D) transmission of visible light through the ozone layer in Earth's stratosphere

Environmental & Atmospheric Sciences

Which aromatic ring substitution reaction is used in the preparation of synthetic detergents?

A) reduction B) halogenation C) nitration D) sulfonation

Environmental & Atmospheric Sciences

Rocks that form from the crystallization of lava or magma are ____________________ rocks

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

One major reason why lakes and marshes are common in recently glaciated areas is that _____

a. those areas have very humid climates b. a huge amount of water was released by the melting of the ice c. the glaciers carved dendritic stream systems d. when ice disappeared, sea level dropped, leaving standing water on land e. preexisting drainages were disrupted by glacial erosion and deposition

Environmental & Atmospheric Sciences