By preserving hot spots, ecologists hope to protect species in danger of extinction due to
a. captive breeding programs.
b. expanding national parks.
c. human activity.
d. biological magnification.

Genetic engineering is the answer.

The soviet union beat the us to the first successful launch, with the october 4, 1957, orbiting of sputnik 1, and later beat the us to have the first human in earth orbit, yuri gagarin, on april 12, 1961. the "race" peaked with the july 20, 1969, us landing of the first humans on the moon with apollo 11