4 points Save An QUESTION 4 Earth is made mostly of metals and rocks. Where did

Question

4 points Save An QUESTION 4 Earth is made mostly of metals and rocks. Where did this material come from? o a. It was created by chemical reactions in interstellar space. o b. It was made by our Sur. c. It was produced by nuclear fusion in stars. o d. It was produced in the Big Bang 4 points Save Answer QUESTION 5 What do we mean by the interstellar medium? a. Interstellar medium is the stars that are in the halo of the M Way Galaxy O b.Interstellar medium is gas and dust that lies between stars in the Milky Way Galaxy c. Interstellar medium is the stars that are in the disk of the Milky Way Galaxy d. Interstellar medium is the middle section of the Milky Way Galaxy 4 points Save Answer QUESTION 6 Where does most star formation occur in the Milky Way today? a. In the halo o b. In the Galactic center OC. In the spiral arms d. In the bulge.

Explanation / Answer

4.(c) It was produced by nuclear fusion in stars

The nuclear fusion ended in the formation of elements with heavy nuclei and which is ultimately the contributes to rock and metals.

5.(b) interstellar medium is a gas and dust that lies between stars in the milkyway galaxy.

It is the space and medium between stars in a galaxy. It consists of gas, dust and cosmic rays.

6. (c) in the spiral arms

most star formation in the Milky Way Galaxy occurs in the spiral arms of galaxy.

Related Questions

Navigate

• Browse (All)
• Browse 4
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.