Answer the following statements true (T) or false (F)

1. Low birthrates in industrialized countries are a major concern for governments, reducing the
number of potential soldiers and taxpayers to support social programs.
2. One of the world's greatest economic challenges over the coming decades will be to supply
the resources that will be demanded, as living standards in poorer countries rise to rich-
country standards.
3. Because better technology means that more output can be produced with the same amount of
energy input, rising living standards in the future will not necessarily depend on using more energy.
4. Efficient energy usage in electricity generation often involves using a mix of energy inputs,
some of which are much more expensive than others.
5. If per-capita energy usage has leveled off while per capita GDP has risen, then it must mean
that each dollar of output produced required a larger amount of energy.

1. TRUE
2. TRUE
3. TRUE
4. TRUE
5. FALSE