Answer:
There are several tectonic provinces collectively called as crystalline providences.
Explanation:
- The geology of Appalachians consists of Blue Ridge, Piedmont, Adirondack, and the New England providences. They are known as Crystalline provinces.
- The sinking of the oceans continued about 270 million year ago due to which a huge mass of rocks was pushed westwards along the margins of North America and piled up to form the mountains.
- The Sierra Nevada is the youngest mountain range on the west coast of the United States.
Odd number go north and south and even number go east and west.
Answer and Explanation
The main role of the government is to promote the general welfare of its citizens. Governments fulfills this function in several ways including managing and monitoring the economy businesses, banks and postal services, education system, roads, public utilities, regulating the safety of food and medicine, security and awareness.
Factors which affect the government.
<em>Political (Citizen) Involvement </em>
Government on the other hand and legislative boards, county managers, are increasingly using the budget to better understand citizens and spending. This transformation have major effect on budget allocations and the relative size of cities and counties.
<em>Economic Influences</em>
A number of factors can influence the economic environment of local government budgeting which includes; economic cycles, inflation, competition along local government and interest rates
<em>Social and Demographic Change.</em>
There are three social and demographic factors which have significant and lasting effects on local budgets which are; population, personal income and age distribution.
<em>Legal and Intergovernmental Matters</em>
These factors shape up the government in three different ways which are budgetary balance, mandates and combined effects.
Human-housing types
Physical-all except political
Answer:
Option (C)
Explanation:
The sea floor refers to the oceanic crust that are comprised of basaltic rocks. The basaltic rocks contains olivine, feldspar and some pyroxenes that are usually denser than the minerals that are found in the continental crust.
On the other hand, continental crust refers to the rocks that are found in the continental landmasses, often comprised of rocks that are granitic in nature. The minerals such as silicates, feldspars are less dense.
When continental plate are subducted under the oceanic crust, the rocks at greater depths undergoes partial melting as a result of which the rocks melts and forms magma. These magma becomes less dense due to the high temperature and rises up towards the the surface in the over-riding plate.
Thus, as the plate subducts, the rock chemistry changes , thereby making it less dense.
Hence, the correct answer is option (C).
