The mass number of an element is equivalent to the number of Protons and Neutrons in the element. For example Oxygen has eight protons and neutrons, therefore its mass number is 16. You could also calculate this by simply rounding the atomic weight of the element to the nearest whole number. Oxygen's atomic weight is 15.994, which as you can see, would be rounded to 16 :)
Answer with Explanation:
<em>Here's an example letter.</em>
Dear Shenn,
How are you? I haven't heard from you in months. I trust you're well. I'm hoping we could meet this coming Christmas season.
I've recently transferred to another school this semester, and I'm really enjoying it. I'm now on my second year in high school. We have a lot of homework and it has been keeping me busy. Are you also busy in school?
On weekends, I spend time with my family and a new family member, Dobbie. No, he's not my brother. He's a Golden Retriever that I've been asking my dad for a very long time. My parents taught me how to take care of him because they say it would teach me responsibility and independence. Honestly, having a dog is not all fun and games. I sometimes feel exhausted, but I'm blessed that my mom loves dogs too; so we take turns taking care of him.
Before I forget, I'd like to invite you over this Christmas eve. My family will be hosting a party at home and we're very much excited to have you as one of our guests.
I'm looking forward to your reply. I hope you and your family are in good health. Do give them my regards.
Sincerely,
<em>Your Name </em>
The land and the colors of the earth
True because Steadily and alarmingly, humans have been depleting Earth's soil resources faster than the nutrients can be replenished
Answer:
False
Explanation:
The increase in cloud-cover occurs with introduction of larger amounts of aerosols into the atmosphere. The increased amounts of carbon dioxide into the atmosphere will result in an increase of the greenhouse effect. Basically, the carbon dioxide is a greenhouse gas, having properties that enable it to trap the heat into the Earth's atmosphere. By doing so, the carbon dioxide will contribute to warmer atmosphere, thus warmer global climate. The effect of it will be that the Earth will have rise in the temperatures on global scale. The ice sheets will mostly melt, resulting in sea level rise. The rise of the sea levels will mean more ocean water, and less land, which in turn will create climate conditions that will be warm and wet in most of the planet.