Question

As a result of this crisis in 1973–1974, U.S. citizens became aware of ecology.
a.
energy crisis
c.
nuclear war
b.
urban flight
d.
loss of farm land

Answer 1

As a result of the energy crisis, in 1973-1974, U.S citizens became aware of ecology. If not, their environment would be endangered.

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Answer 2

As a result of this crisis in 1973–1974, U.S. citizens became aware of an energy crisis, since this issue revolved around the fact that OPEC made an oil embargo.