Which of the following is a reason why historians may want to consider opinions as well as facts reported by a source?

A.
A source that historians trust is likely to have true opinions

B.
The opinions may provide clues to the source's feelings and possible bias

C.
Examining opinions will reveal whether it is a primary or secondary

D.
The opinions will reveal the identity of the source

B. The opinions may provide clues to the source's feelings and possible bias

How are equal-area projections of Earth inaccurate?

A.
​There are distortions near the center of the map

B.
Directions and the shapes of the landmasses are distorted

C.
This projection does not show true sizes

D.
Areas close to the poles are disproportionately large

D. Areas close to the poles are disproportionately large

What causes earthquakes?

A.
Blocks of crust slide against one another, often at plate boundaries

B.
Pressure builds up in the molten rock beneath Earth's crust and causes it to shake

C.
Tectonic plates break apart into smaller plates, and the crumbling causes shaking

D.
Sudden motions in Earth's mantle cause the crust to shift

A. Blocks of crust slide against one another, often at plate boundaries

Which is one advantage of maps over aerial photographs as a way of understanding Earth's surface?

A.
There is too much distortion in a photograph

B.
​Maps show more features ​than photographs

C.
Photographs show only the most important features for a given purpose

D.
Photographs do not give an accurate picture of the region they show

B. Maps show more features than photographs

If the demand for a good or service increases, how will prices affect supply?

A.
Rising prices will boost supply

B.
Failing prices will decrease supply

C.
Rising prices will decrease supply

D.
Failing prices will boost supply

A. Rising prices will boost supply

Which is a right that both citizens and non-citizens in the U.S. share?

A.
​the right to vote

B.
the right to religious freedom

C.
the right to run for public office

D.
the right to have a job