Answer:
A. The use of stimulants in small doses helps focus attention and reduces hyperactivity.
Explanation:
Methylphenidate is a common drug stimulant that is given to the children above five-year-old for ADHD. This medicine comes under a category called stimulant which increases the activity of the brain particularly that area which suppresses the level activity related to attention and concentration. but it has some side effects of stimulants.
- Heart rate and blood pressure get increase.
- Appetite loss leads to underweight
- Loss of sleep
- Loss libido
- Mood swings etc.
They are all considered to be electromagnetic radiation. In this kind of radiation or energy, electric and magnetic fields vary at the same time, creating rates or frequencies that determine the different types of "rays" and how much energy each wave carries -the higher the frequency is, the more energy it bears.
The role of the media is that they give out all the information that is relative to the matter
D. While all factors damage the environment greenhouse gases are the ones that heat the earth. There called greenhouse gases because they have a greenhouse effect trapping heat in. Too little and earth can freeze, too much and the earth will be an oven. (Too hot.)