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Q: The most common elements in the earths crusts are rarely found on their own They are usually found combined Why?
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What is the salary of a children's entertainer?

0 dollars in pie crusts


Movement point where the earthquake fisrt takes place?

When the two crusts rubbing together start to crack and cracks form and big or small pieces of the crust break off of the big piece in which they came from. (The crust is the land) Its called the epicenter.


Why earthquakes are caused?

A Earthquake is caused by the two plates (Plate Boundary) you can have 3 Plate Boundaries 1) Destructive Plate Boundary 2) Collision Plate Boundary 3) Conservative Plate Boundary and this are what cause a earthquake because when they meet they build so much pressure it makes a earthquake.


How much does a tectonic plate weigh?

An estimate of the mass of an "average" continental lithospheric plate is 40.7x1021 kg or forty sextillion, seven hundred quintillion kilograms.It should be noted that this can only ever be considered a rough approximation of the order of magnitude of the mass of a lithospheric continental plate as there are so many unknowns. For example the exact thickness of the lithospheric plates, and the horizontal and vertical variations of density which can't be known exactly and so require the use of assumed or average values.For the assumptions and working required to arrive at this value, please see the following:This question is impossible to give an exact answer to as all the Earth's tectonic plates are of varying size and thickness and are composed of material that has varying densities with increasing depth.However it may be possible to make a very rough estimate of the order of magnitude of the mass / weight of a tectonic plate as follows:There are 8 major tectonic plates and a number of smaller ones. If it can be assumed that the major plates cover the majority of the Earth's surface (and that the minor plates are of negligible area) then it can be assumed that an average major plate has a surface area equal to 1/8 of the surface area of the Earth.Earth's surface area = 510,072,000 km2Average plate = 510,072,000 / 8 = 63,759,000 km2We have to make a further assumption here about the average density and thickness of a tectonic plate in order to make an estimate of its mass and weight.According to the Wikipedia entry (see the related links), typical Oceanic Lithosphere is on average 100 km thick and typical continental lithosphere is on average 200 km thick (obviously this varies significantly depending on the presence of mountain ranges etc. but is a reasonable assumption for a rough estimate).Further to this an estimate must be made of the average density of both the oceanic and continental crusts as well as the upper brittle mantle which is also part of a tectonic plate.According to the Wikipedia entry for the oceanic and continental crust, their average density is 3300 kg/m3 and 2750 kg/m3 respectively. Further to this, the upper 200-300 km of the mantle can be assumed to also have an average density of 3300 kg/m3 AAs such it is possible to estimate the mass of an "average" continental plate and an "average" oceanic plate or at least to gain an estimate of the order of magnitude.Mass of an "average" continental plate:Average thickness of continental crust = 40 km Volume of continental crustal portion of plate:63,759,000,000,000 x 40,000= 2.55036 x 1018 m3Mass of continental crustal portion of plate= 2.55036 x 1018 x 2,750 =7.01349 x 1021 kgVolume of continental lithospheric portion of plate:63,759,000,000,000 x 160,000= 1.020144 x 1019 m3Mass of continental lithospheric portion of plate:1.020144 x 1019 x 3,3003.3664752 x 1022 kgTotal estimated mass of a continental lithospheric plate:7.01349 x 1021 + 3.3664752 x 1022= 4.0678242 x 1022 kg=40,678,242,000,000,000,000,000 kg.or 40.7x1021 kgor forty sextillion, six hundred and seventy eight quintillion, two hundred and forty quadrillionkilograms.Please see the related links.


How do human activities affect the natural environment?

Several centuries ago, Native Americans of the Hohokam tribe were able to create a civilization in the desert by building extensive irrigation canals. In the last two centuries, humans have found more and more efficient ways of making the desert livable for an increasing number of people. Technological advances, in the form of enormous dams, miles of water canals, and millions of air-conditioning units, have resulted in the desert becoming an extremely comfortable environment for cities, as well as for agriculture and grazing industries. However, these advances have had negative effects on the desert ecosystem. Increased grazing has degraded riparian zones and altered the desert plant community and agriculture and irrigation has altered streams, rivers, and canyons. Exotic and sometimes invasive species have been introduced that can quickly colonize and dominate the landscape. Increased visitors to parks and natural areas have effected the biotic soil crusts of even the most preserved areas. Finally, the growth of cities and ensuing suburban sprawl is replacing the once desert landscape with concrete, lawns, homes and picket fences. Source: http://www.earlham.edu/~biol/desert/impacts.htm

Related questions

Where on the surface of earth have most volcanoes erupted?

Along what is called the ring of fire, it's along the earth crusts usually


How were pie crusts first used?

Pie crusts were originally used only with meat dishes


What elements are found in a high proportion in earths crusts?

The Elements found in a high proportion in the Earths crust are, 1. Oxygen. 2. Silicon. 3. Aluminum. 4. Iron. 5. Calcium. 6. Sodium. 7. Potassium. 8. Magnesium.


Does eating the crusts of bread give you curly hair?

No, eating the crusts of bread will not make you hair curly.


Do pancakes have crust?

No Pancakes don't have crusts any how why would they The white bit around the side is just part of the pancake not crusts No, pancakes do not have crusts. The circumference bit is just the same as the middle, just less cooked. Some think these are crusts but they don't.


How are crusts classified?

cause they are tasty:)))))))


What is the earths crusts consistency?

f8ah8vana


Are bread crusts good for you?

bread crusts are good for you because they contain more wheat than the bread itself how could they be bad for you?


Where in the world are earthquakes more common?

Earthquakes are most common where plates of the crusts collide or separate and especially in the Pacific ring of fire. The pacific ring of fire is a chain of volcanoes and earthquakes along the edges of the Pacific ocean.


Does Justin bieber like crusts?

yeah


In the sentence She liked thick crusts better than the thin and crispy type but she wasn't really fussy What are the nouns?

The nouns in the sentence are crusts and type.


In what area of the world are Earthquakes most common?

Earthquakes are most common where plates of the crusts collide or separate and especially in the Pacific ring of fire. The pacific ring of fire is a chain of volcanoes and earthquakes along the edges of the Pacific ocean.