The oceanic crust and the continental crust have different densities. The density of continental crust varies but generally falls in the range of 2.6 to 2.8 g/cm³. The oceanic crust's average density is around 2.9 to 3.0 grams per cubic centimeter (g/cm³).
Oceanic crust, which is primarily composed of basaltic rocks, is denser than continental crust. This higher density is due to the basaltic composition, which is rich in iron and magnesium minerals.
The continental crust, which consists mainly of granitic rocks, has a lower average density compared to the oceanic crust. The lower density of the continental crust is primarily attributed to its granitic composition, which contains lighter minerals like quartz and feldspar.
To learn more about the oceanic crust, follow the link;
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The statement is correct.
The contour lines are a very good indicator of the relief. The closer they are to one another, the steeper the relief, and vice verse, the more distant they are from one another, the flatter the relief is.
In general, contour lines that are very close to each other can be noticed on the mountains, as most of the mountains have steep parts, or rather steeper slopes.
The more distant contour lines, on the other hand, can be found on places like the valleys or the plateaus, places that in general are much flatter.
Answer:
lines that are closer together are steeper so your answer is steeper
Explanation:
b. Atlas Mountain Range
c. Nile River
d. Sahel
The answer is A. Great rift valley...just took test.
(This is for the worksheet 3.1 The Rock Cycle)
Answer:
sedimentary (ex: limestone), metamorphic (ex: marble), igneous (ex: granite)
Explanation:
sedimentary, metamorphic, and igneous are the 3 types of rocks formed by the rock cycle. didnt know if you only needed that or examples of each kind so I gave both. also not important but a fun fact igneous means made by fire, metamorphic (think of a butterfly, they go through metamorphosis) this means they change, and sedimentary (rocks pressed together to form a new one often found after events such as erosion, etc). hope this helps :)
Answer:
Gases at the top of the thermosphere are so hot because they are constantly bombarded with high-energy solar radiation. The thin atmosphere in the thermosphere cannot absorb this radiation, so it heats up quickly. In addition, the few gas molecules in the thermosphere have a lot of kinetic energy because they are moving at extremely high speeds due to the high temperatures. This combination of high-energy solar radiation and fast-moving gas molecules creates the extremely high temperatures found in the upper thermosphere.
Gases at the top of the thermosphere are hot due to the absorption of high-energy UV radiation from the Sun. The low gas density in the thermosphere causes the energy to be spread out among fewer molecules, leading to a higher temperature. However, we do not feel the heat because of the low density.
Gases at the top of the thermosphere are so hot due to the absorption of high-energy ultraviolet (UV) radiation from the Sun. The thermosphere is the layer of the Earth's atmosphere that is directly exposed to solar radiation. When UV radiation enters this layer, it heats up the gas molecules, causing them to gain a lot of energy and increase in temperature.
This happens because the gas molecules in the thermosphere are very sparse, meaning that there are fewer molecules to absorb the energy. As a result, the energy is spread out among fewer molecules, causing each molecule to have a higher average energy and thus a higher temperature.
It's important to note that even though the thermosphere has high temperatures, it does not feel hot to us on the Earth's surface because the gas density is so low that there is not enough contact between the gas and our bodies to transfer the heat.
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B. sand
C. amber
D. volcanic ash
c. amber :))))))))))))))))))))