Search from various English teachers...
Profile
I'm an American from California who grew up in a Mandarin speaking house. I've lived and worked overseas so I picked up some other languages, and I'm always interested in improving them and learning new ones. My wife speaks Spanish and our kids learn Mandarin. I have a science/engineering background and can help those who use technical English.
Learning
Chinese (Mandarin)
Italian
French
Language Skills
EnglishNative
Interests
Films & TV Series
Fashion & Beauty
Sports & Fitness
Food
Science
Lesson Feedback
Lesson history
 Last monthLast 3 monthsAll time
Completed lessons0053
Attendance rate100%100%100%
Teacher reviews
Laura
Italian
Jun 30, 2020
Colin, devo dire che sei proprio simpatico, ogni volta che chiacchieriamo mi faccio un sacco di risate! Alla prossima!
Adam·HSK
Chinese (Mandarin)
Sep 26, 2019
其实我觉得你的中国水平还是蛮可以的。你可以选那一本。
Adam·HSK
Chinese (Mandarin)
Sep 13, 2019
等你选好教材就告诉我。
Laura
Italian
Jul 26, 2019
Chiacchierata molto divertente, e come al solito il tempo è volato! Grazie Colin, e alla prossima!
Activities
  • Corrected

    GREENHOUSE EFFECT

    Most Solar radiation emitted from the Sun has a short wavelength. As such, only a fraction is some of these are able to penetrate the atmosphere and reach the Earth’s surface. Then the Earth absorbs these radiations and heats up. After, the portion which does penetrate the atmosphere is absorbed by the Earth’s surface, which then  re-emits this energy in the form of heat.
    Some atmospheric gasses of the atmosphere absorb the heat radiation and emit heat toward the space and the as well as reflect it back to earth. This phenomenon is called the greenhouse effect. It’s responsible for the heating of the temperature of our planet. Indeed, without the greenhouse effect,greenhouse gas the earth's temperature’s Earth would be lower bycolder about 10-20 degrees.
    Water vapor, carbon dioxide and ozone are the most important greenhouse gases because they’re able to absorb the heat radiation. Especially In particular, water vapor is a greenhouse gas with the highest concentration and also features the strongestit’s the most effective about the greenhouse effect.
    But what happens to earth’s climate if greenhouse gas concentration’s greenhouse gasses increases?
    According to scientific researches and statistical calculations, if greenhouse gas concentration’s greenhouse gasses increases, the atmosphere’s temperature will get hotter and hotter.
    0 voted
    June 7, 2018
    0