Answer:
B. it is based on the idea that all the present continents were one supercontinent
Explanation:
This is the answer because Pangaea is the name of the supercontinent whose existence is theorized. This theory supports plate tectonics because if it wasn't for plate tectonics, all the continents would still be a single large landmass.
<u>Erosional deformation
</u> is not a form of rock deformation.
Answer: Option B
<u>Explanation:</u>
Rocks are all the time being subjected to force within the surface of earth because of which these rocks tend to twist, bend or get fractured. This causes the rock to change in their shape or size which is known as the deformation of rock and this deformation is affected by temperature, rock type, time and the pressure. Rocks deform in two ways which are ductile and brittle deformation.
<span>A fast-moving flow consisting of a mixture of water and volcaniclastic debris is lahar. It is a kind of mudflow that is made up of materials that flow down a volcano. It has the consistency of wet concrete but they go down volcanoes at rapid speeds.</span>
<h2>Right answer: It is used to measure long distances in space</h2>
A light year (
) is a distance unit that is approximately 
.
By definition it is <em>the distance that a photon would travel in vacuum during a Julian year (365.25 days) at the speed of light (299 792 458 m/s) at an infinite distance from any gravitational field or field magnetic.
</em>
<em>
</em>
In other words:
It is the distance that light can travel in a year.
This unit is used to measure large distances in space. Therefore the correct answer is D.
