They may be formed simply by being deep beneath the Earth's surface, subjected to high temperatures and the great pressure of the rock layers above it. ... Some examples of metamorphic rocks are gneiss, slate, marble, schist, and quartzite.
D. The erosion of North Carolina coastline. The rest are environmental science, not geography.
Answer: 100Mpc
Explanation:
Hubble deduced that the farther the galaxy is, the more redshifted it is in its spectrum, and noted that all galaxies are "moving away from each other with a speed that increases with distance", and enunciated the now called Hubble–Lemaître Law.
This is mathematically expressed as:
(1)
Where:
is the approximate recession velocity of the galaxy
is the Hubble constant
is the distance
Now, we have two galaxies A and B ande we know the following:
Galaxy A has a velocity twice that of galaxy B
(2)
Galaxy A is 200 Mpc away
(3)
According to Hubble Law:
(4)
(5)
Substituting (2) in (5):
(6)
(7)
(8)
If 
(9)
(10)
Substituting (8) in (11):
(11)
Finally:
Humans can erode/change landscapes, such as Mount Everest was carved by humans. Also, things like deforestation can cause erosion in unnatural places, which can change natural landmarks and characteristics of a certain place. This links to geography because geography is all about the earth, and if humans are not careful they can alter the earth forever.
