<span>Assuming that this is referring to the same list of options that was posted before with this question, the best response is "destructive" since many Natives were moves off their land. </span>
<span>D. an unofficial competition between different departments of NASA to develop new space technology
</span>
The more crops there are, that means that there's gonna be more resources. Which will mean that more people will be able to live in a town, because if there are less resources and less crops then more people will starve and die out way before they can reproduce. If they cant keep reproducing and be able to feed their children, then the town will become smaller and smaller until its completely vanished.
Well the cause of the Boston Massacre was the colonists throwing stuff at the soldiers and the soldiers ended up shooting into the crowd, killing a few people.