1.

1. Today, the earth has many satellites besides the moon. P. But the pull of the earth keeps them from doing so. Q. The artificial satellites do not fall because they are going too fast to do so. R. They are the artificial satellites made by man and very much smaller than the moon. S. As they speed along they tend to go straight off into space. 6. As a result, they travel in an orbit round the earth.

A. QPSR
B. PRQS
C. SPQR
D. RQSP
Answer» E.


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