What materials were used to construct early American homes?

They include; mud, thatch, wood, stone, rammed earth, and mudbrick.

Explanation:

Different regions in Africa had materials specified for the construction of their houses. West Africa, more specifically Nigeria was known for the use of mud in the construction of their houses. Several other materials were mixed with the mud to solidify it. Palm fronds were used for roofing.

Central Africa incorporated wood in the construction of their houses. South Africa are known for the use of stone and wood in their buildings. North Africa were known for the use of stone and rammed earth.

the answers is b.   environments.