7. what are the two most abundant elements in the earth? describe the major categories of materials constituting the earth. does the crust have the same composition as the whole earth? 8. what are silicate rocks? give four examples of such rocks, and explain how they differ from one another in terms of their chemical composition 9. how did researchers first obtain a realistic estimate of earth's average density? what observations led to the realization that the earth is largely solid and that a particularly dense core lies at the center?
Answers: 3
Other questions on the subject: Geography
Geography, 22.06.2019 03:20, litwork1726
Nuclear experimentation is a major global issue that affects relationships between countries. describe why countries try to limit the testing of nuclear weapons.
Answers: 1
Geography, 23.06.2019 10:00, xxYingxYangxx7311
How can minerals crystallize from materials dissolved in water? check all that apply.
Answers: 1
Geography, 24.06.2019 06:50, AngelH2650
Pollution from one country can affect another. for example, south korea is especially affected by pollution and dust storms that come from
Answers: 1
Do you know the correct answer?
7. what are the two most abundant elements in the earth? describe the major categories of materials...
Questions in other subjects:
Mathematics, 21.01.2021 23:10
History, 21.01.2021 23:10
Geography, 21.01.2021 23:10
Chemistry, 21.01.2021 23:10
