How did innovation in weapons of war affect the outcome of ww1

The infantry soldiers or the foot soldiers are one greatly affect the World War 1.

Explanation:

New invention in the field of weapon technology has made the war as most difficult one because of extended period. The new invention like machine guns and military tanks are invention made the war most difficult one because the machine guns has extended the war and made it become a trough war.

Another inclusion to this invention is the airplanes made of canvas, wood and wires. Initially it was used to find out the enemies hideouts and either side gun down the airplanes because of its efficiency. The major impact was done by the large artillery guns which can shoot up to range of 80 miles besides this tank also done devastation.

2. a land bridge connected asia and north america thousands of years ago.

4. crossing the land bridge would have been simple for the first migrants.

5. people might have crossed a land bridge while hunting animals.