Tutor profile: Amy H.
Subject: Natural Sciences
What is the difference between the layers of the atmosphere?
The Troposphere is the first layer and it is 90% of the atmosphere's mass. After that, is the Tropopause and this is where the temperature increases. This is where commercial aircrafts fly. It is also highest in the tropics and lowest over the poles. Next is the Stratosphere and the temperature goes up and the pressure goes down. This is where there is good ozone. This layer blocks UV rays and so there's a lot of heat from the UV energy. After this is the Stratopause and in this layer, the temperature goes back down. The Mesosphere comes after and it is where there are shooting stars. It is the coldest region. The Mesopause is next and it acts to cool the atmosphere with increased radiation emission. Then finally after all of this, comes the Thermosphere. This is 500 kilometers and up and this is where there are satellites and the Auroras.
Subject: Environmental Science
How are pollutants evaluated by the government and what are some examples of some major pollutants and why are they dangerous?
Pollutants are evaluated in two categories: Primary and Secondary. Primary standards are focused on protecting public health. Ex. The health of asthmatics, children and the elderly. Secondary standards are geared towards protecting public welfare. Ex. Everyone else. Some examples of major pollutants are CO, NOx, and SO2. CO is carbon monoxide. It is toxic, colorless and odorless. It replaces the oxygen in your blood by binding to the hemoglobin. It causes headaches, dizziness and death. NOx are mono-nitrogen oxides. They have respiratory effects and as a result, increase asthma. It reacts with the mucus layers in our lungs to form HNO3 ( nitric acid). SO2 is sulfur dioxide. It also increases asthma by having negative respiratory effects. And once again, by reacting with the mucus in our lungs, it can form H2SO4 ( sulfuric acid).
How can I improve my writing?
To start off, ask yourself the following questions. Did you cover the necessary points of the prompt/paper? Is there an thesis statement and the appropriate supporting arguments? Am I using one word too often? After this, read the paper out loud. Where you need to take a breath, is where you need to put punctuation, a semicolon, a colon or a comma depending on the case. A period is used at the end of a sentence along with the question mark and exclamation point but typically in a professional paper, you tend to avoid using the last two. A period is used for statements. A question mark for inquiries and the exclamation point for an exclamation or interjection. You can use the semicolon if the two sentences are related to one another but are independent of each other. Ex. Rita had a giant bow; she loved to tie it around her hair. As for the colon, it is used to introduce a subject or a series of subjects. Ex. Patricia knew she had to do the unspeakable: apologize. This is what they wanted: a clothes hanger, a potato and a mug. Last but not least, the comma can be used before a conjunction ( and, but, or), for separating subjects on a list, and to introduce an element. Ex. Steering towards the wall, I pressed the brakes as hard as I could. Names flashed through my mind: Julie, Brian, Jise, Dominic. There had to be another way to avoid what was coming, but my mind kept drawing a blank. Another thought to keep in mind is to separate paragraphs where they need to be. If a paragraph is too long, find where the subjects are different and create two paragraphs. If you have any further questions, feel free to contact me for more advice. I'd be happy to help.
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