What made mustard gas so effective?
a. it was effective in stopping air attacks
b. it didn't need to be inhaled to be effective
c. it was colorless
d. it caused instant death in most cases

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

Explanation:

    Ingestion of the gas irritates mucous membranes, causing burning, large blisters and internal burns. If the amount of gas is large, it affects the entire digestive system. Symptoms appear after 24 hours. By mixing with fat, the agent is easily absorbed by the body, and is still able to pass through clothes.

    In contact with the eyes, mustard causes conjunctivitis. Within 24 hours, the eyelids swell and the victim has blindness. The pupil can be very small, permanently. With treatment in less than 12 hours, eye contamination does not kill, but leaves sequelae, such as blindness and other damage that may force eye removal.

    Inhaled mustard gas causes bleeding and blisters in the respiratory system. Victims usually die from pulmonary edema - excess fluid in the lung. Even at high concentrations, the gas is not perceived by the victim for several hours. In the case of lung contamination, this “discretion” is fatal.

    If exposure is only to the skin, the gas is fatal when it affects more than 50% of the victim's body. Death is slow, extremely painful and can take weeks. If the person survives, the treatment is long and debilitating. Even so, the chances of having skin cancer in the future increase exponentially.

a historian is attempting to study how the puritans affected society in new england