Salutations!
<span>Which would have a smoother shape, a young mountain plain, or an old mountain plain?
An old mountain plain would have a smoother shape because it has more erosion and less breaks off cliffs.
Hope I helped!</span>
Australia is referred to as an island
Answer:
c = 55° and d = 125°
Explanation:
Given that,

We need to find the measure of angle c and angle d.
We know that the sum of angles of a triangle is 180 degrees. So,
a+b+c = 180
85+40+c = 180
125+c=180
c = 180-125
= 55°
Using exterior angle theorem,
d = a+b
d = 85+40
d = 125°
Hence, c = 55° and d = 125°
Superposition is the geologic principle which explains why the bottom stratum in a section of rock is the oldest. The word literally means placing one thing on top of another where the lower strata are the older.
Well europe, asia, north america, half of africa so pick any country of those you would be right. Examples of african (it hs 32) areas in the northern hemi: egypt, kenya, libya, morocco, and the sahara desert
(australia and the other islands are in the southern)