1.

S1:Throughout history man has used energy from the sun.P :Today, when we burn wood or use electric current we are drawing an energy.Q :However we now have a new supply of energy.R :All our ordinary life depends on sun.S :This has come from the sun.S6:This energy comes from inside atoms.The Proper sequence should be:

A. QSRP
B. SQPR
C. RQPS
D. PSRQ
Answer» E.


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