Answer:
An oil well is formed
Explanation:
Limestone is a kind of sedimentary rock that is rich in minerals, most of them work as nutrients for some living things like corals and clams, that is the reason why in the first point is quite common to find these living things.
In the case of the shale, is a kind of rock that is like compact sand, doesn`t have enough minerals to living things. even more, there are different colors depending the mineral that is the dominant in the rock.
If it is black is a signal of organic compounds, that is the reason why in the second point just the clams are present but not the coral.
And in the third point, both living things dissapear, because this shale turns into oil.
Replaced by seizure of white-owned land
Island Africa is the largest
Answer:
Missouri and Arkansas
Explanation:
The Ozark Mountains cover approximately 50,000 square miles in four states: Missouri, Arkansas, Oklahoma, and Kansas.
Most of those 50,000 square miles, however, are in just two states. According to the Missouri Department of Natural Resources, the forested mountain region takes up 33,000 square miles in Missouri and 13,000 square miles of Arkansas, with the remaining 4,000 split between Oklahoma and a very tiny sliver of Kansas.
The Rocky Mountains are described as younger because the Rocky's are really two mountain chains. The older mountain chain started billions of years ago, and the younger mountain chain pushed the older mountain chain up more, only 60 millions years ago.