24 hours it is caused by gravity
The chemical make-up of a rock refers to its composition. Your answer is correct. This is because geologists determine the amount of occurring inorganic solids and chemical composition in minerals the make-up a particular kind of rock. The variety of arrangements of chemical elements in a rock determine its basic or complex composition.
A trade restriction is an artificial restriction on the trade of goods and/or services between two or more countries. It is the byproduct of protectionism.
It depends on where you live. Try both and compare. You can delete an app you don't want.
The Ural mountains create a distinct border between Europe ans Asia.
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