Answer:
1)A
2)D
Explanation:
Westward expansion, the 19th-century movement of settlers into the ... by the Gold Rush, the Oregon Trail and a belief in "manifest destiny. ... The Louisiana Purchase stretched from the Mississippi River to the ... is one of the defining themes of 19th-century American history, but it is .... California Gold Rush.
Answer:
A topographic map.
Explanation:
A topographic map is a map that aims to describe a part of the Earth's surface as faithfully and completely as possible by showing, among other things, natural features, relief, infrastructure, buildings, natural limits, boundaries. administrative and toponyms used. The color of a surface can also be considered as a symbol, as it provides information about the terrain.
Thus, topographic maps serve to establish on a map the different geographical features that cover a certain terrain, such as mountains, plateaus, plains, lakes, rivers, etc.
This process is natural selection<span>. The traits that confer an advantage to those individuals who leave more offspring are called </span>adaptations<span>. In order for </span>natural selection<span> to operate on a trait, the trait must possess heritable variation and must confer an advantage in the competition for resources.</span>
