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3 years ago

15

List and describe the evidence used to support the plate tectonics theory.

1 answer:

umka2103 [35]3 years ago

3 0

The basic theory of plate tectonics is that along seafloor spreading zones, the continents are separating from one another. As they spread apart, magma comes to the surface and becomes new continental crust. As the tectonic plates move away from spreading zones, they collide with one another.

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The earth can be approximated as a sphere of uniform density, rotating on its axis once a day. the mass of the earth is 5.97×102

patriot [66]

Answer: $9.72(10)^{37} kgm^{2}$

Explanation:

Assuming that the Earth is a solid sphere, of mass $M$ and radius $R$ around an axis that passes through its center, with uniform density (that is: its center of mass coincides with the center of the sphere), its moment of inertia $I$ is given by the following formula:

$I=\frac{2}{5}MR^{2}$ (1)

Where:

$M=5.97(10)^{24}kg$

$R=6.38(10)^{6}m$

$I=\frac{2}{5}(5.97(10)^{24}kg)(6.38(10)^{6}m)^{2}$ (2)

Finally:

$I=9.72(10)^{37}kg.m^{2}$

6 0

3 years ago

Please give me questions on natural vegetation. I am studying for my exam

anyanavicka [17]

Answer:

Class 8

What are natural resources?

How does land fulfil our needs?

Name a few landforms.

What are the factors that determine the pattern in which a particular region is used?

Mention some methods that are used to conserve soil?

Class 7

Name the brightest flower on tall trees.

How is natural vegetation classified?

Why do type and thickness of natural vegetation vary from place to place?

Write down the features of Tropical Evergreen Forests.

Write the features of Tropical Deciduous Forests.

Where are Temperate Evergreen forests located?

Which region is called the “orchards of the world” and why?

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Explain major features of Tundra Type of Vegetation

6 0

3 years ago

You are a business executive on your way from Chicago O’Hare International Airport to a country in Southeast Asia. Your aircraft

Llana [10]

Designated country of arrival is singapore because changi international airport is in singapore

6 0

3 years ago

The Pacific Island chain located nearest to Australia is __________.

Arisa [49]

The pacific island chain located nearest to australia is C. Melanesia

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4 years ago

What was Canada's ranking on the 2013 happiness report

Nimfa-mama [501]

Answer:

http://unsdsn.org/resources/publications/world-happiness-report-2013/

Explanation:

click the link the study was from a canda school

4 0

3 years ago