Modern marvels: world war i tech video guide

1) invasion of Poland

i can only answer number one

Explanation:

wood carving remains today the primary sculptural art form of the sub saharan continent. african art history shows the earliest wooden sculptures from the 17th c are attributed to the kuba, central zaire but the earliest surviving sub-saharan sculpture is a zoomorphic head found in 1928 in central angola.

i hope this .

answer; people where able to travel across the u.s.a faster than any other mode of transportation,travel time was about a week,from coast to coast