A "projection" is a way of displaying the 3-D Earth in a 2-D form <em>(C)</em> ... like on a piece of paper.
There are many different map projections. Each one has advantages and disadvantages. It's not possible to correctly reproduce all the details of a globe surface on a flat piece of paper. Something's gotta give.
Answer:
Agriculture allowed people to stay in one place, and increased food production caused the population density to expand far beyond levels that could be sustained by hunting and gathering alone. This growth in population density provided a critical mass of people to sustain and spread contagious infectious diseases.
<u>Answer:</u>
<em>The rule of cross-cutting connections expresses that a volcanic interruption is constantly more youthful than the stone it cuts over.</em>
<u>Explanation:</u>
<em>Analyze the volcanic interruption and the encompassing rock.</em> Cross-cutting connections is a guideline of topography that expresses that the geologic element which cuts another is the more youthful of the two highlights.
It is a relative dating strategy in geography. The <em>standard of cross-cutting connections expresses that a volcanic interruption is constantly more youthful than the stone it cuts over.</em>
Options A and D are true. The other two options are absurd and not even based on fact while A & D are true concerning this part of Africa at that time.