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neonofarm [45]
3 years ago
7

There are three types of rocks on Earth. Each rock type forms in a different way. Igneous rocks were the first rocks on Earth. T

hey form from molten rock. Molten rock is rock that has turned to liquid because of extreme heat. Lava is the name for the molten rock that erupts from volcanoes. When molten rock is below the Earth’s surface, it’s called magma. When molten rock—either lava or magma—cools, it hardens into a solid. This forms igneous rocks. Some examples of igneous rocks are granite, obsidian and basalt. Much of Hawaii’s coast is covered in basalt. Waves break the basalt down over time, creating the black sand of some Hawaiian beaches.
Which of the following is true about lava and magma?
A. Lava and magma are both types of molten rock.
B. Magma uses waves to break down lava over time.
C. When magma cools and hardens it becomes lava.
D. Magma is called lava when it’s below the Earth’s surface.
Physics
2 answers:
MrMuchimi3 years ago
7 0

Answer:

Answer is 1, both are molten rocks.

zubka84 [21]3 years ago
5 0

Answer:

A

Explanation:

hot rocks bois, gottem

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Answer:

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For the sign convention, f is taken as positive for a concave mirror. Therefore, we can solve the equation for q:
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The fact that q is positive means that the image is real, so it is on the same side of the object, with respect to the mirror.

Then we can also find the size of the image with respect to the original object. The magnification is given by
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3 years ago
How many bits can be stored on a 20 GB hard disk? (Hint: 1GB= 1,073,741,824 bytes; 1 byte=8 bits.)
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