Answer:
Negative human impact of the environment is pollution we cause by waste and many other things. Positive human impact is the humans helping clean up the environment and help stop as much pollution as they can.
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Answer:
The closer the rocks are to the mid-ocean ridge the younger they are, and the further away they are the older they are.
Explanation:
The ocean floor gives us one of the best if not the best evidence for the movement of tectonic plates, and definitely the best when it comes to ocean floor spreading. When the convection currents are stronger at parts, they manage to break up tectonic plates, moving them apart, and gradually forming an ocean.
The magma that is pushed through the gap is quickly cooling off and solidifies into a new rock on the ocean floor. Because magma keeps coming constantly for millions of years, the new rock that forms constantly pushes away the preexisting rock. This leads to a situation where the youngest rocks are always found at the mid-ocean ridge because it is there where they form. The further a rock is from the mid-ocean ridge the older it is. The oldest rocks are found at the edges of plate boundaries that are on the opposite sides of the mid-ocean ridge, and they often tend to be a subject of subduction.
Given:
O, P, and Q be distinct collinear points with PQ=3.
P′ and Q′ be the images of points P and Q under dilation from point O with scale factor 4.
To find:
The length of the image segment P'Q'.
Solution:
We know that,
P′ and Q′ be the images of points P and Q under dilation from point O with scale factor 4. So, Segment P'Q' is the image of segment PQ and the scale factor is 4.
It is given that PQ=3.
Multiply both sides by 3.
Therefore, the length of the image segment P'Q' is 12 units.
The percentage of the earths's water is 71 percent.
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