Answer:
crystal
Explanation: The repeating pattern of a mineral's particles form a solid called a crystal. The particles of a crystal line up in a pattern that repeats. A crystal has flat sides and sharp edges and corners.
<span><span>Earth's atmosphere traps energy from the sun, whichcauses meteors to burn up.
allows ozone to form easily.
allows solar radiation to penetrate to the surface.
allows water to exist as a liquid.
Air has pressure because
wind moves the air.
the stratosphere is thick.
temperature warms the air.
air has mass.
The layer of the atmosphere between the stratosphere and the thermosphere is called the
mesosphere.
troposphere. (below stratosphere)
exosphere.
ionosphere.
When climbing a high mountain, you get out of breath easily because
air pressure is greater.
the air is more dense.
the percentage of oxygen in the air decreases.
there is less oxygen in each cubic meter of air.
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<span>The margins surrounding the Atlantic ocean are passive, meaning they are not actively taking part in a continental rift or collision. Contrarily, the Pacific margin is active, as it occurs at a plate boundary. The Pacific Ocean is shrinking, while rifting in the middle of the Atlantic is causing it to grow.</span>
Answer:
The most important of the six essential elements of Geography, to explain the distribution of the population in the United States, is human systems.
Human systems are all the networks of human relations that cover a geographic area. They include economic systems, which are formed by groups of humans enganging in productive activities of all sorts.
In the modern era, humans tend to live in cities, specially in developed countries like the United States. The distribution of the population of the United States, that we can see on the map, is likely the result of th concentration of such human systems in the darker areas.