Answer:
<em>The</em><em>re</em><em> is</em><em> </em><em>ac</em><em>tually</em><em> </em><em>diff</em><em>erent</em><em> </em><em>w</em><em>ays</em><em> to</em><em> </em><em>ex</em><em>plain</em><em> </em><em>it</em>
Explanation:
<em>b</em><em>ut</em><em> </em><em>one</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>m</em><em>ost</em><em> important</em><em> </em><em>rea</em><em>sons</em><em> </em><em>is</em><em> </em><em>that</em><em>,</em><em> </em><em>A mental disorder, also called a mental illness</em><em> </em><em>or</em><em> psychiatric disorder, is a behavioral or mental pattern that causes significant distress or impairment of personal functioning. Such features may be persistent, relapsing and remitting, or occur as a single episode. Many disorders have been described, with signs and symptoms that vary widely between specific disorders. Such disorders may be diagnosed by a mental health professional.</em>
Answer:

Explanation:
Let's think about this from a human perspective (humans are multicellular organisms).
Humans inhale oxygen to use in cellular respiration. Carbon dioxide is the waste product of the process and it is exhaled.
Humans consume proteins and make proteins in protein synthesis. They are used for all sorts of things such as: hormones, repairing tissues, catalysts, providing structure, and more.
So, clearly, the substance that is let out is<u> carbon dioxide</u>. It is exhaled as waste when we breathe, but proteins are used inside the body.
Phones influence kids in a negative way because it makes the phone is addicting.Phones are addicting to kids mostly because of apps.Being adficted to the phone makes people like kids stay on it for a long period of time without realizing it, which could lead to wasting time for homework or study time. Being addicted to the phone may also mean less sleep time.I personally was and still may be one of the victims because it has become a habit of mine.Being addicted may alao lead to ignoring surroundings like your mom talking to you or like homework as I had mentioned earlier which usually has a negative impact on yourself.Being addicted also may lead to health issues.For example it could lead to vision problems from the brightness to long periods of time. Not only could it do that but it may make you feel lazy and not excercise.It is way eas ier to sit down and a snack with a phone all day which could alao lead to back aches from slouching and not stretching.It could also lead to being obese which could alao lead to diabeties. At the same time people say phones could cause brain tumors from rf waces geating your skin tissues.Others may argue that phones are educational. This may be only true if they are only watching or playing educational games but most kids are addicted because they do not use your phone wisely because they use it mostly for entertainment.All in all, the priviledge to even have a phone at this young age could cause long term consequences.To rven think that they are the future could be terrible.Kids need to chose wisely because it is addicting amd chose, with the help of their family, to stip using the phone as much.
<span>Hydrogen is the answer</span>
The correct answer is letter D. All of the choices above are direct results of human activity. Our constant search for the perfect society has caused major ecological imbalances on wide scales reaching to catastrophic events that can no longer be altered. Our actions to better ourselves result to affecting mother nature directly in many different ways.