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Is there more of an iceberg under or over the water?
Approximately 90% of an iceberg's mass is underwater, with only about 10% visible above the surface. This is due to the lower density of ice compared to water. So, the majority of an iceberg is hidden beneath the water's surface.
Do surface waves only move in back and forth motions?
Surface waves can also move in a circular motion, known as orbital motion. This combination of back and forth and circular movement allows surface waves to transfer energy along the surface of a medium, such as water or the Earth's crust.
What substances can body waves move through?
Body waves can move through solids, liquids, and gases. Primary (P) waves can travel through all three mediums, while secondary (S) waves can only travel through solids. Love and Rayleigh waves are surface waves that travel along the boundary of solids, such as the Earth's crust.
The period of oscillation of a pendulum of constant length at the earths surface is T.its period inside a mine would be?
When you go down below the surface of the Earth, the gravity will initially INCREASE. This is because Earth's density is not uniform - there is more mass concentrated closer to the center, than in the case of a sphere of uniform density. If Earth were a sphere of uniform density, the gravity would get less, once you go below the surface - because some of Earth's material would pull you upward.In any case, if you go further down, eventually the force of gravity will become less. When the gravity increases (as it does initially), the period will become shorter.
Evaporation only occurs at the surface of a liquid?
Yes, the surface contains all the exposed surface area, therefore it is easier for the water to evaporate the air. Keep in mind that water does not have to boil to be evaporated, or we would never have rain.
Which layer of the Earth is the only layer that is known to contain life?
The only layer of the earth to contain life is the crust. The crust consists of two parts: the continental crust and the oceanic crust. The oceanic crust is below the oceans and is 4-7 miles thick. The continental crust is the surface you see. It is mostly water and 29% land.
Is granite everywhere?
No. It only occurs in areas of continental crust and is only present at the surface in a small percentage of that.
Is the crust solid liquid semi-solid rocky all soil?
The crust is solid rock. Soil only makes up a small part of the crust right at its surface.
True are false The crust is very thick and heavy?
False, the crust is actually a lot less dense than the materials below the crust, the mantle and the core, which contains the heavier elements of the earth's composition. The crust is in fact very thin in comparision to the size of the earth. The crust is only the first 40 km of under the surface, while to get to the core it is 6378km. The crust is about .62% of the earth's thickness, its almost like imagining earth as an orange and the crst being the wax covering the orange.
Is the crust earth's only solid layer true or false?
True or false: the crust includes BOTH dry land and the bottoms of the oceans?
Do hot spots form only under oceanic crust?
No, there is a hot spot underyellowstone
What can only be found under the surface of the earth?
dirt
Is the fallowing sentence True or falseHot spots form only under the oceanic crust?
its false
What is the distance of the crust only?
The Earth's crust varies in thickness, with an average of around 18 to 37 kilometers (11 to 23 miles) under continents and about 7 kilometers (4 miles) under oceans.
What is true of the earth's crust?
The Earth's crust is the outermost layer of the Earth, composed of solid rock that includes both continental and oceanic crust. It is thinnest under the oceans and thickest under mountain ranges. The crust is divided into several tectonic plates that float on the semi-fluid mantle below, causing movements such as earthquakes and volcanic activity.
Is oceanic crust is usually thicker than continental crust?
No. Oceanic crust is heavier and denser than continental crust, but is actually thinner. Continental crust is believed to actually extend down into the magma of the mantle (upon which crust floats) more deeply than oceanic crust, similar to how a huge ice cube will not only be larger above the surface of water than a smaller ice cube, but will extend more deeply into a glass than a small ice cube ... so not only does continental crust extend higher on the surface (since it is continental crust, it has dry land above the ocean floor), but the 'bottom' of the crust also extends deeper into the earth. Oceanic crust is thus thinner than continental crust, but made of denser, heavier rock (which is why it subducts under continental crusts where continental and oceanic plates converge).
What floats on earth mantle?
The Earth's mantle is composed of solid rock that is denser than the crust above it. As a result, the mantle does not float on the Earth's surface, but rather acts as a semi-rigid layer that lies beneath the crust and above the core.
