The way that camels help increase trade across geographic barriers of northern Africa is : Camels helped with transportation.
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then, we still have not developed machine based transportation
vehicles, so we rely on ships and carts. Since the horses are unable to
cross pass the desert, most of the animals that is used on northern
Africa trade were camels.
Answer:
Explanation:
There are four traditional types of printing: relief printing (with which this article is mainly concerned), intaglio, lithography, and screen process printing. Relief printing encompasses type, stereotype, electrotype, and letterpress. Flexographic printing is a form of rotary letterpress printing using flexible rubber plates and rapid-drying inks.
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