Answer:
b. There is insufficient contrast in surface type (land vs. ocean) in the middle latitudes.
Explanation:
The sources of air masses can be produced or at very high latitudes because they can carry big amounts of air from the top of a mountain till the bottom by the differences of pressure and temperatures. This kind of air mass is called continental.
In the other hand, in a low latitude, the air coming from the sea, try to reach higher latitudes, again, by pressure and temperatures differences. These kind of air masses are called maritime.
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One reason is that the plates float on a hot boiling mentle. when the heat rises and the mentle expands the plates above it also moves.
the other reason is that the plates themselves move.plates have warmer inner sides that tend to rise. and colder outer side that tends to sink. this tug of war between the hotter and colder sides of the plate also helps them move.
1. <span>an expert in or student of anthropology
2. </span><span>an expert in or student of the development, structure, and functioning of human society
3. the people
4. </span>Urban geography<span> is the subdiscipline of </span>geography<span> which concentrates on those parts of the </span>Earth's surface<span> that have a high concentration of </span>buildings<span> and </span><span>infrastructure
5. </span><span>are atmospheric scientists who study the Earth's climate
6. </span><span>A geologist is a scientist who studies the solid and liquid matter that constitutes the Earth as well as the processes that shape it
7. </span><span>is a scientist who studies fossils. If your basement is filled with fossils found while out on hikes, then you're an amateur </span><span>paleontologist
8. </span><span>covers a wide range of topics, including marine life and ecosystems, ocean circulation, plate tectonics and the geology of the sea floor, and the chemical and physical properties of the ocean</span>