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"Rare earths" is a collective name for 17 different elements; pressumably each of them would have a different price.
they form above earths surface (THIS ANSWER IS NOT CORRECT) They Form BELOW earths surface(:
no
A pie graph with approximately 78% nitrogen, 21% oxygen, and 1% other gases would accurately represent the percentage of elements by volume in Earth's troposphere.
yes this is true.
The lowest layer of Earth's troposphere is called the planetary boundary layer (PBL). It typically extends from the Earth's surface up to a few hundred to a couple of thousand meters in height, depending on various factors such as weather conditions and terrain. In this layer, mixing of air, pollutants, and other substances is more pronounced due to interaction with the Earth's surface.
The atmospheric layer closest to the Earth's crust is the troposphere. It is where we live and where most weather phenomena occur.
troposphere
The first layer of the Earth's atmosphere is called the troposphere, and it is in direct contact with the Earth's surface. This layer is where weather events occur and where most of the Earth's clouds and precipitation are found. Temperature usually decreases with altitude in the troposphere.
The troposphere is Earth's densest atmospheric layer, containing approximately 75% of the atmosphere's total mass. It is the layer closest to the Earth's surface, extending up to about 7-17 kilometers in altitude.
The Troposphere
The air in the troposphere is warmed by heat from the Earth's surface through the process of conduction and convection. As the Earth's surface absorbs solar radiation, it heats up and transfers some of this heat to the air directly above it. This warming of the air creates temperature gradients and drives weather patterns and atmospheric circulation.
the troposphere
Weather occurs in the troposphere, which is the lowest layer of the Earth's atmosphere. This layer extends from the Earth's surface up to an average height of 7-20 km, where most weather phenomena, such as clouds, rain, storms, and winds, take place.
troposphere