Why did both sides in world war 1 turn to new weapons?

to combat the deadlock in the trenches, like for example the tank, it was made to break through trench lines, and the machine gun it was made to mow down assaults on trenches, or positions. Gas attacks were also used to help in offensives, for it rendered the enemy trenches paralyzed, meaning they cant fight back, because they are dying

Explanation:

he risk-return relationship. generally, the higher the potential return of an investment, the higher the risk. there is no guarantee that you will actually get a higher return by accepting more risk. diversification enables you to reduce the risk of your portfolio without sacrificing potential returns.

explanation:

the answer should be founding brothers. i hope i you!