Purple could mean many things but if it's talking about climate and such then cooler colors like purple are usually meaning colder climate
It slowly makes the ground softer making it easier for it to dissolve
Answer:
B. Nation
Explanation:
B is the best answer here because culture, nationality, history, and ethnicity are all directly tied to one's country (nation). Territory and boundary are not as specific, and state is too narrow.
B. . Doctrine that the US had the right and duty to expand throughout North America.
The molecules in hot air are moving faster than the molecules in cold air. Because of this, the molecules in hot air tend to be further apart on average, giving hot air a lower density
