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Why metals are found from earths core?
Metals are found in the Earth's core because during the Earth's formation, heavy metals such as iron and nickel sank towards the center due to their high density. This process, called planetary differentiation, led to the concentration of metals in the core while lighter elements rose to form the Earth's mantle and crust.
What kind of plate boundary cost old and heavy crust to sink in to the mantle?
A subduction zone is the plate boundary where old and heavy oceanic crust sinks into the mantle. At subduction zones, oceanic crust is forced beneath another tectonic plate, typically a continental plate, due to differences in density. This process can lead to the formation of deep oceanic trenches and volcanic arcs on the overriding plate.
What among the crust the mantle and the core has the highest density?
The core has the highest density among the crust, mantle, and core. This is because the core is composed mainly of iron and nickel, which are heavy elements that increase its overall density compared to the other layers of the Earth.
Is most of the earth's heat is stored in the mantle?
No. The Earth's core and mantle would have cooled down by now (4500 million years of cooling) if the heat in the centre were just residual heat from the Earth's formation. When the Earth was forming and entirely molten, all the heavy elements will have sunk into the core of the planet, separating themselves out into layers of increasing density (this layering would have been disturbed somewhat by convection movements). This would mean that the very heavy radioactive elements would have moved to the core and it is the decay processes of these that is keeping the interior of the earth hot and has been driving plate tectonics and volcanic activity. In essence the planet is a slow fission reactor/bomb. You may well ask - if all the heavy elements sank, why can we find any at the surface now? - and the answer to that is that a second wave of heavy elements was delivered to the planet after the surface had solidified/cooled, in the late heavy bombardment (which is probably when Earth's) water was delivered too.
Why do convection currents happen in the mantle?
The convection currents are a result of heat from the interior of the Earth. The rock of the upper mantle known as the asthenosphere is plastic-like but not molten. It acts like a conveyor belt, moving heat from Earth's interior upward, and cooled material downward in a big loop. New crust is created where mantle material reaches the surface at places called mid-ocean ridges. Older, colder oceanic crust is subducted and drawn into the mantle, completing the loop.
What is the layer of heavy rocks beneath the Earth's crust?
The upper mantle.
What is the size of the earth's upper mantle?
elephants anad feathers which make it light and heavy
Why is there so little evidence of the period if heavy bombardment on earth?
Earths volcanoes;)
What contributes the lack of evidence of the period of heavy bombardment on earth?
Earths valcanoes
What contribute to the lack of the evidence of the period of heavy bombardment on Earth?
Earths volcanoes;)
What is the layer of heavy rocks beneath the earth's crust called?
The layer of heavy rocks beneath the Earth's crust is called the mantle. It is composed of solid rock material that extends down to about 1,800 miles below the Earth's surface.
What human action does not alter the earths landscape?
Wearing heavy clothes in cold climates.
What are the best options for mantle hanging hardware?
The best options for mantle hanging hardware include heavy-duty brackets, cleat systems, and decorative hooks. These options provide secure support for the mantle while also adding a stylish touch to your space.
How to hang a mantle securely and safely?
To hang a mantle securely and safely, first locate the studs in the wall where you want to hang the mantle. Use a stud finder to find the studs. Then, use heavy-duty screws or bolts to attach the mantle to the studs, making sure it is level. It is also important to follow the manufacturer's instructions for installation and weight limits.
How can I effectively hang stockings on a mantle?
To effectively hang stockings on a mantle, use stocking holders or hooks that can support the weight of the stockings. Place the holders evenly spaced along the mantle and hang the stockings securely on them. Make sure the stockings are evenly spaced and not too heavy to prevent them from falling.
What area features weak winds and heavy precipitation?
Any place that features dry and wet seasons undergoes weak wind shifts and heavy precipitation. Several areas of the world like rainforests experience wet seasons.
Why is there so little evidence of the period of heavy bombardment on earths?
Weathering, plate movements and volcanoes destroyed many of the craters
