What river creates the southern edge of California

Oque provoca coroço no peito do homen?

Were african-americans allowed to serve in the military in wwi?

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