Agriculture is by far the single most important economic activity in Africa. It provides employment for about two-thirds of the continent's working population and for each country contributes an average of 30 to 60 percent of gross domestic product and about 30 percent of the value of exports.
-Have a good day.
due to the lack of info I'm gonna include that it is A) valued
C . pre Columbian
Explanation:
pre Columbian trade was a type of trade that imported good from the Americas and to the Americas. it was around the Christopher columbus
Isaac Newton promoted the idea that science must rely on repeated observation and experimentation.
The goal of the Obama administration in US was to revive the economy, provide affordable and accessible health care to all, strengthen public education and social security systems. Also, one of his goals is to clear path to energy independence and to discuss climate change.
