Answer:
A
Explanation:
Because the gravity and the mass of objects are proportionate
Answer:
I don’t know which question you specifically need help with but an atom with 4 protons and 4 neutrons would be Beryllium. It is a neutral atom. It takes 4 electrons to make it neutral. Helium has 2 protons and 2 neutrons. It is also a neutral atom.
Explanation:
Answer:
A mixture is a combination of two or more substances in which the identities of substances are retained.
Explanation:
sorry if i'm wrong
Almost 30 years after the clean water act was passed in the US, the percentage of surface water considered safe for fishing and swimming had increased from 36% to 60% which is almost twice the original value. Certain programs and policies were implemented as part of the act.
