1. reported to be the most terrifying to soldiers on the front because they often couldn’t see it.

chemical weapons
airplanes
submarines
machine guns

2. best describes life on the trenches.
boring
terrifying
unsanitary
all the above

1.  Chemical weapons (because it was something new and sometimes ineffective)

2.  All the above

Explanation:

peasants’ war, (1524–25) peasant uprising in germany inspired by changes brought by the reformation, peasants in western and southern germany invoked   divine law to demand agrarian rights and freedom from oppression by nobles and landlords. as the uprising spread, some peasant groups organized armies. although the revolt was supported huldrych zwingli and thomas müntzerits condemnation by martain luther contributed to its defeat, principally by the army of the swabian league. some 100,000 peasants were killed. reprisals and increased restrictions discouraged further attempts to improve the peasants’ plight.

i think it would be " a" i might be wrong tho