Why can paper cutouts of the continents including the continental margins be pieced together to form a single whole

Atown is built on the banks of a small lake on the edge of a desert. after some time, the townspeople discover that water from the lake has become too polluted to use. describe one way that the lake may have been contaminated by the actions of the townspeople, and explain how the townspeople can remediate this problem.

In the 1400s, portugal’s economy was based on a. industry b. exports c. finance d. trade

Read the article titled "castro resigns." why did the us impose trade sanctions against cuba in 1962?