What parallel can be drawn between the polis of ancient Greece and the city

How were chinese immigrants treated in the late 1800s

What are new social classes emerged due to advancement in agriculture ?

What do most climatologists see as a major cause of rising global temperatures? a. earth's closer proximity to the sun due to its gravitational pull b. greenhouse gases produced by burning fossil fuels c. rising ocean levels caused by melting polar ice sheets d. water pollution cause by industrial waste