![Chemistry](/tpl/images/cats/himiya.png)
Earth is approximately 4.5 billion years old. Is it likely that any of the rocks that were on Earth's surface when it first formed are still in existence?
A.
No, rock material is constantly recycled on Earth's surface through the rock cycle.
B.
No, most of Earth's magma did not solidify until 1 billion years ago.
C.
Yes, Earth's surface has changed very little since Earth was first formed.
D.
Yes, rocks are very hard and should be able to survive for 4.5 billion years.
![answer](/tpl/images/cats/otvet.png)
Answers: 2
Other questions on the subject: Chemistry
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 00:00, lilyclairehutson
Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.
Answers: 1
![image](/tpl/images/cats/himiya.png)
![image](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 09:00, valeriekbueno
If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?
Answers: 1
Do you know the correct answer?
Earth is approximately 4.5 billion years old. Is it likely that any of the rocks that were on Earth'...
Questions in other subjects:
![Konu](/tpl/images/cats/himiya.png)
Chemistry, 06.04.2020 23:35
![Konu](/tpl/images/cats/ekonomika.png)
Business, 06.04.2020 23:35
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 06.04.2020 23:35
![Konu](/tpl/images/cats/mat.png)
Mathematics, 06.04.2020 23:35
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/mat.png)