1. what made mustard gas so effective?
it was effective in stopping air attacks
it didn't need to be inhaled to be effective
it was colorless
it caused instant death in most cases

2. why did people inside of tanks often pass out?
they had very little training
it was so fast
they were terrified
it was very hot and there was nothing separating them from the engine and its fumes

1.  It didn't need to be inhaled to be effective

2.  It was very hot and there was nothing separating them from the engine and its fumes

Explanation:

mustard gas is a chemical agen that caused severe burning of the skin, eyes, and respiratory tract; can be absorbed through inhalation, ingestion, or coming into contact with skin/eyes.

congress failed to remove johnson. but it did succeed in getting control of efforts to re-build the south following america's civil war. radical republicans wanted to punish the south for starting the war. they also wanted to be sure new governments in the southern states would support the republican party.

can you attach the graph and answer options (: