03.02 Big Picture Africa

Who was marshall mcluhan and what did he have to do with communication theory?

What former head of the cuban secret service was charged with protecting the country's prime minister for nearly 50 years?

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