The correct answer is- Proton
A proton is approximately 2,000 times heavier than an electron. In most cases, atoms have an equal number of protons and electrons. However, because protons are so much heavier than electrons, the electrons do not make a significant contribution to the mass of an atom.
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Answer:
You’ll Burn Calories
Most concerts involve a lot of standing, jumping and dancing which can help you to burn calories that you would otherwise hold onto.
Raise Your Spirits
Everyone can use a little extra boost to his or her spirits during the day. Attending a concert is typically a fun activity, and it can help to boost your emotions throughout the entire day.
Get Involved
You don’t have to go to a large venue to experience the fun of a live concert: many communities offer live music as a way for people to socialize and visit in a safe setting. Local bands may play live in parks or venues, and attending these shows gives you a chance to get out, meet new people.
Discover New Sounds
Most bands will offer an opening act or two to get the crowd excited and on their feet. These acts may be bands or individuals you have never heard of.
Safe Outing
If you make smart choices and stay where you’re supposed to be, a concert is a great opportunity to be surrounded by people in a safe area. Though concerts are notorious for drugs and alcohol, you make smart choices and avoid these situations and simply relax and have a good time surrounded by thousands of people who are doing the same thing.
I think what u wrote is correct
Answer:
A. Rural to urban migration increases the population density to eastern China
