Garrett Morgan was the <span>African American that invented an early version of the gas mask.
The answer is choice B. Hope that helps! -UF aka Nadia</span>
The resources that were traded on the Trans-Saharan trade were salt, slaves, and religion. The West African countries were trading their gold for salt. The slaves were sent North and served as slaves or slave concubines. Islam was spread through the use of the Trans-Saharan trade route.
They started more war fronts and then tried Ariel attacks.
Explanation:
The trenches were an invention during the time of the first world war when the soldiers began to dig into the fields and fight from them instead of open pitched battle which was common in the time.
The trenches were thus marked as the end of the fast paced war as both forces had defensive portions on the turf.
This was to be worked around by using more war fronts to surround and bypass the trenches as well as ways to mount the other trenches and overtake them.
