c is correct.
(Pe)²/(De)³=(Pj)²/(Dj)³ (Pe stands for period of Earth, De for Distance of Earth from Sun,
Because Dj=5.2De
(Pe)²/(De)³=(Pj)²/(5.2De)³
Pj=√(5.2³)(Pe)²=(5.2³)(1)² ≈11.9 =(note: Pe=1 earth year)
Answer:
none :)
Step-by-step explanation:
Sumer was an urban civilization which was historically named as the first in the region of southern Mesopotamia, which is modernly called southern Iraq. This was a wealthy civilization composed of merchants of different metals and other stuffs. One thing they were not importing was iron metal.
The answer is 1 because 1/2×2=1
