The correct answer is - They formed long ago, and erosion has beveled them to their present elevation.
The Appalachian Mountain Range is one of the oldest mountain ranges on the planet. They have formed in the Ordovician Period, around 480 million years ago. When they formed and were at their peak, the Appalachians were much larger and higher than what they are in the present. The reason for their decline in size is attributed to the erosion. The erosion is a process that removes the material from its original position. This process has been influencing, at different rates, the Appalachians for almost half a billion years. Even though the erosion is not a process that acts very quickly, when put the time that it influenced these mountains we will see that it managed to lower them significantly. That process continues in the present, and in the manner in which the continents are moving, there shouldn't be any force that will help lift up the Appalachians again, but instead they will continue to shrink until they are flattened in the distant future.
technology
reuse, recycle and reduce
resources
Answer:
C. occurs when many atomic bonds are broken quickly and rock pieces separate.
Explanation:
Planet earths Brittle deformation occurs when many atomic bonds are broken quickly and rock pieces separate.
This brittle deformation occurs when rocks along active plate boundaries are subjected to physical stress such as change temperature which causes their atomic bonds to break and the rock becomes shattered, this is termed brittle deformation.
There is also ductile deformation in rocks
Answer:
The EU is based on the rule of law. Everything the EU does is founded on treaties, voluntarily and democratically agreed by its EU countries. Law and justice are upheld by an independent judiciary. The EU countries gave final jurisdiction to the European Court of Justice which judgements have to be respected by all.
I would say that the resource you could use to find the meaning of <em>ambiguous </em>is the dictionary.
An almanac is an annual publication about weather, crops, etc.
A thesaurus is a dictionary of synonyms.
An encyclopedia is self-explanatory.
