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Harman [31]
3 years ago
5

Which diagram represents a landscape where fine-grained igneous bedrock is most likely to be found?

Geography
1 answer:
Naddik [55]3 years ago
4 0
Fine grained igneous rocks are formed when molten rock cool relatively quickly so large crystals are unable to form. This rapid cooling can only occur at the surface when lava erupted from volcanoes interacts with the air. Fined grained igneous rocks are called extrusive igneous rocks. Basalt and andesite are examples of such rocks. The diagram or image most likely shows volcanoes or lava flows. 
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Answer:

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Explanation:

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Two stars can have the same luminosity if the relation between the radius and the surface temperature is maintained.  

To see this lets suposed you have 2 stars, a and b, and the luminosities of each one of them:

L_a = σ(T_a^4)(4πR_a^2)

L_b = σ(T_b^4)(4πR_b^2)

you can assume that L_a and L_b are equal:

σ(T_a^4)(4πR_a^2) = σ(T_b^4)(4πR_b^2)

Now, you can cancel the constants:

(T_a^4)(R_a^2) = (T_b^4)(R_b^2)

as long as this relation between a and b is true, then the luminosity can be the same.

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