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What two Earth regions is oxygen the second most abundant element by volume?
The two Earth regions where oxygen is the second most abundant element by volume are the Earth's crust, after silicon, and the Earth's atmosphere, after nitrogen.
What are the two most abundant gases in the Earth?
The two most abundant gases in the Earth's atmosphere are nitrogen (about 78%) and oxygen (about 21%).
What are the most two alkaline earth metals are?
Magnesium and calcium are the two most common alkaline earth metals.Magnesium and calcium, both in nature as compounds.
What are the two most common gases in the earth's amosphere?
The two most common gases in Earth's atmosphere are nitrogen (approximately 78%) and oxygen (approximately 21%).
What are the two most important reasons for the changing seasons?
Earth's tilt and Earth's rotation
Which two elements are the most abundant in the earths crust?
Oxygen and silicon are the two most abundant elements in the Earth's crust. They make up about 75% of the Earth's crust by weight.
What are the two most common alkaline earth metals?
The two most common alkaline earth metals are calcium (Ca) and magnesium (Mg). They are found abundantly in the Earth's crust and play important roles in biological processes and industrial applications.
What are the two most abundant in the Earth's crust?
The most abundant element in the Earth's crust is oxygen at 46%. The second is silicon at 28%.
What is the mass of the earth is made by which two elements?
In the Earth crust the most abundant are oxygen and silicon.
What are the two most active earthquake zones?
In water or earth
What are the two most abundant element by mass found in the Earth?
The two most abundant elements by mass in the earth's crust are oxygen and silicone. The crust of the earth typically runs between 20 and 25 miles deep from the surface.
What are The most abundant elements in Earth's curst?
The two most abundant element's in the earth's crust are oxygen and silicon. Refer to the related link to see a list of the most abundant elements in the earth's crust.
