I have less then 10mins

Question  6)The permafrost in Siberia is  cold because of it's latitude

Question 7 False

Explanation:

Question 6 the latitude of Siberia places it in the Arctic which can get down to 55 below zero!

Question 7)

Actually before modern times it was hard to travel with people or goods nd it was expensive.  The mountains made it worse. The Silk road or sea were the main ways to spread ideas, people and goods because of the treacherous mountains.   So ti is not true.

because the sun creates the shadows and its only what people on earth see in the sky which are the phases of the moon.