Geographers often group places into regions. what is a region?
(a) an awareness of the world
(b) a physical characteristic, such as a landform
(c) a physical system, such as a hurricane
(d) a place that is united by one or more common characteristics

D

Explanation:

Using process of elimination you can see that d is the only answer choice that makes sense.

the answer is b: the religion they practice.

here's why:

there were many different native american tribes and those with similar characteristics formed a main tribe or nation. each had its own language, religion and customs.

the section of the chart that represents a point at which a bill needs approval from a majority of people in both chambers to advance is j, as this is the only section before the bill becomes law which has both rows (symbolizing the chambers) converging into one, meaning that the two parts of the congress have to approve of it before it can march on with the process.