Answer:
No
Explanation:
No the explanation is not correct as mass of the object is same in the entire universe. Whereas the weight of objects changes from planet to planet as gravitation pull of planets changes.
Bonjeur monseur, la french are here! it seems you have a problem with the elements on earth. lead seems correct since it is indeed a harmful material
the nucleus of an atom is held together by the strong force, while the electrons are held in the atom by the electric force.
I believe that the answer to your question is false! I'm not 100% sure but I know a thing or 2 about science
3. A
4. B
5. A
6. E
7. A
8. C
9. A
10. B
Some of these were guesses but they were educated guesses. Best of luck. If some of them are wrong I am sorry. <span />