How did trade between West and North Africa affect the economic growth of the regions

West African economic growth rates have been insufficient in most countries to make significant reductions in poverty. Essentially, West Africa’s farmers and firms produce and trade in highly localized markets and do not achieve the sufficient economies of scale required to attract broad-based investment that could accelerate growth and reduce poverty.

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.

depends on the age of the teen, many believe by the age of 16 a person should know the strong difference between right and wrong along with the difference between risky and immediate death. swimming with sharks might be dangerous but swimming with sharks while bloody meat is attached to you is just insane. even more if you have no idea what you're doing. however, no matter the age, as long as the person is skilled enough and has the mental and physical capacity to control their actions doing whatever sport they put their mind to is all that matters.