With earths core being very very hot it is plasma which is lava but its comes closer to the surface and cools downs to become a solid.
ANSWER: Constructive interference
Explanation: The amplitudes of in phase points on overlapping waves add up to make a result of a larger amplitude.
ANSWER 2: Destructive interference
Explanation: The amplitudes of out of phase points on overlapping waves subtract to make a resultant with a smaller amplitude
ANSWER 3: Wave interference
Explanation: Two waves overlap.
A, in urban areas :)
Urban areas have bigger populations than rural ones and the Rocky Mountains have terrain that is difficult to settle on
A property of fine-grained clastic rocks is that they are easily eroded.
<h3>Why are these rocks easily eroded?</h3>
Fine-grained clastic rocks have small fragments and grains which make them lighter than other rocks.
As a result they are more susceptible to weathering which then allows them to be easily carried off by water or air.
In conclusion, option A is correct.
Find out more on weathering at brainly.com/question/12734041.