In 1981, from space, an imaging radar system was used to bounce radar signals off the surfaces of the world's major deserts to study the history of the earth's aridity; the system also unexpectedly revealed

Name: In 1981, from space, an imaging radar system was used to bounce radar signals off the surfaces of the world's major deserts to study the history of the earth's aridity; the system also unexpectedly revealed
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Question

Quizplus · Accepted Answer

The imaging radar system revealed ancient watercourses in the major deserts.

In 1981, from Space, an Imaging Radar System Was Used