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The correct answer is:
D. Extrusive rocks.
The explanation:
when extrusive igneous rocks form when magma reaches the Earth's surface a volcano and cools quickly. Most extrusive (volcanic) rocks have small crystals. Examples include basalt, rhyolite, andesite, and obsidian.
Answer The Moon has synchronous rotation: it's rotation period is the same as its period of revolution
Explanation:
The Moon has synchronous rotation: it's rotation period is the same as its period of revolution
The sentence that would best describe the crater is A. Concave because
concave means curves inward like if you cut open a hollow sphere it is a concave shape.
Answer:N=13.53 rpm
Explanation:
Given
radius 
Centripetal acceleration 
and centripetal acceleration 
where 
and 
