Biological warfare (mustard gas)
<span>He helped formulate the colonists' grievances against the British government in the 1760s.</span>
Answer: New threat or perceived opportunity
Explanation:
According to sociologist doug mcadam, a new threat or perceived opportunity must occur for a social movement to arise. It's been realized by him that what will spur or arise the intentions of a group of people to achieve a goal that was either forgotten, dead or a new one is by a new threat or a perceived opportunity. In most cases threat tends to spur individuals to take situations serious and would want an outcome.
Answer:
A key showing what icons/colors used on the map indicate.