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Marina86 [1]
3 years ago
10

Why does mantle convection occur?

Geography
1 answer:
Fiesta28 [93]3 years ago
4 0

Explanation:

Convection occurs in the Earth's mantle because it is the most efficient way for the Earth to cool or dispose of its deep-seated heat content. In general, heat can be transferred by conduction, radiation or convection.

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Color is not very helpful in mineral identification because _____.
yarga [219]

Answer: b. property different minerals can have the same color

Explanation:

Minerals can be identified by its colour, appearance and luster. However, different minerals might have almost the same color which makes it difficult to identify and distinguish. Further tests needs to be carried out to properly identify a mineral.

6 0
3 years ago
Which elevation zone on the image above is best suited to raising livestock? A. Tierra Fria B. Tierra Templada C. Tierra Nevada
Setler [38]

The correct answer is A. Tierra Fria.

Tierra Fria is composed of highlands, but even though it is very high area, because of the low latitude and high altitude, this area has a very pleasant climate which is actually pretty similar to the oceanic coastal regions of the temperate climates. Because of this, it is very suitable for the livestock, since the weather conditions are very nice, the grass is green for most of the year and it is in abundance, plus the region is clean, and also lacks predators.

4 0
3 years ago
Read 2 more answers
johnny is seven years older then his little sister. let j represent jonny's age and s represent his sister
vampirchik [111]
Well to find this out you need to make an equation

s+7=j
So for example if Johnny's sister is 15 then Johnny would be 22 because
s(sister's age) +7(number of years difference between their ages)=22(Johnny's age)
3 0
3 years ago
Which expression gives the length of JK in the triangle shown below?
Ann [662]
Perimeter = 3x. Area = x^2 * sqrt(3)/4. Explanation of area:. You can divide an equilateral triangle into 2 right triangles, each with a common side we will call y.. Area = area of first right triangle + area of second right triangle = (x/2)*y/2 + (x/2)*y/2 = xy/2. Now: y^2 + (x/2)^2 = x^2 so y…
7 0
3 years ago
Please help me with both questions!!
Mamont248 [21]

Answer:

17. Laccolith

18. Sill

Explanation:

A laccolith is formed when magma makes its way up a d-ike and lodges itself between sedimentary rocks. The successive flow puts pressure on the rock such that a dome like structure is formed.

Sills are like mini laccoliths but instead are much smaller and linear. They can appear on multiple layers as shown in the diagram above.

3 0
3 years ago
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