Hydrogen
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The most common element in Earth's first atmosphere was likely hydrogen, along with helium and traces of other elements. These gases were likely present during the planet's formation and early evolution.
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.
Earth's first layer of atmosphere is called the troposphere. It is the layer closest to the Earth's surface and where most weather phenomena occur.
Earth's first atmosphere was likely formed from gases released during volcanic activity. These gases included water vapor, carbon dioxide, methane, and ammonia. Over time, the atmosphere evolved through processes such as photosynthesis and the formation of oceans.
the earth first atmosphere is troposphere
The element Nitrogen (N) makes up about 78% of the Earth's atmosphere. Nitrogen is a gas at room temperature and has the atomic number 7. Nitrogen is in Period 2 of the Periodic Table and is the first element in Group 15(5).