How was the islamic golden age possible?

How are the freedom of religion and the freedom of assembly alike? both involve the freedom to express oneself. both were an original part of the constitution. both were practiced by the early puritans. both were denied to immigrants.

In what way did expansion and global trade during the 15th to 18th centuries affect the economies of european countries?

What major land feature is located at 0* and 20* e? a sahara desert b kalahara desert c congo basin d the alps