The first man-made satellite, Sputnik 1, was launched into space in 1957. This satellite was used to study the conditions found in the higher atmospheric layers.

Since then, other uses for satellites have been developed. One of these uses, satellite imagery, has made it possible to capture pictures of objects in space or on the Earth. The advances that created satellite imagery have led to being able to see
A.
types of landforms.
B.
homes and neighborhoods.
C.
planets and moons.
D.
all of these
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