• Continents Deformed Earth Atmosphere Formed
    541 words
    Chapter 22 page 5981. What is the commonly accepted age of Earth? a) 4. 6 Billion years 2. Which of the following was not a source of heat for the early Earth? a) hydrothermal energy 3. What are small asteroids called? a) meteoroids 4. What is the process by which a planet becomes internally zoned when heavy materials toward its center and lighter materials accumulate near its surface? a) Diffentiation 5. Where is most of the North American Precambrian shield exposed at the surface? a) Canada 6...
  • Global Warming Contribute Gases Earth
    268 words
    November Fourth two thousand and one Environmental Science Governor's School of Global Economics and Technology Global Warming Global warming is the earth's average ground temperatures. The main cause of global warming is the burning of fossil fuels. These fossil fuels release carbon dioxide into the earth's atmosphere. Also other substances known as greenhouse gases are released into the earth's atmosphere. The earth becomes a better insulator, as these gases become more affluent preserving mor...
  • Exploding Star 000 Radiation Light
    402 words
    Could an exploding star have been responsible for the death of the dinosaurs? This idea has become popular again as an explanation for the disappearance of the dinosaurs. An exploding star can blast material enormous distances into space. If this material reached Earth's atmosphere, changes may have occurred that were harmful to life. We call an exploding star a supernova. Nova is the Latin word for new, and in ancient times, when an exploding star was observed, people often thought a new star w...
  • Greenhouse Effect Earth Atmosphere Heat
    313 words
    THE GREENHOUSE EFFECT The greenhouse effect: retention of heat in the Earth's atmosphere due to the presence of greenhouse gases. In this essay, I will tell you how the greenhouse effect works and the importance it has in our atmosphere and everyday life. The greenhouse effect is the rise in temperature that the Earth experiences because certain gases in the atmosphere (water vapor, carbon dioxide, nitrous oxide, and methane) trap energy from the sun. Without these certain gases, the heat would ...