LESSON 3-5

• Resources that will eventually run out?

  Finite Resources
• Main reason of the negative impact is the human population is increasing.
• We introduce technology without knowing how it will influence the environment?

  Advancing Technologies
• A large loss of rainforest and its biodiversity?

  Direct Harvesting
• Had many adverse influences on air, water and land?

  Pollution
• Greenhouse gases due to the burning of fossil fuels and depletion of our ozone layer?

  Atmospheric Changes
• Importing foreign organisms have caused problems for native organsims. Also known as exotic species?

  Invasive Species
• Three major environmental problems:

  • Global warming
  • Acid Percipitation or rain
  • Ozone Depletion
• Caused by sulfur dioxide and nitrogen dioxide pollution from the burning of fossil fuels such as coal and oil. They combine with water vapor?

  Acid Percipitation
• Some problems associated with Acid Percipitation:

  • Streams and lakes becoming more acidic, killing fish, frogs and other life.
  • Damage forests and plants and deteriorates buildings.
• We can use alternative energy sources such as solar panels for electricity and hot water heaters.
• Burning fossil fuels and other pollution increases the amount of CO2 in the air. This can potentially increase the earth’s temperature?

  Global Warming
• Include gasoline, coal and oil?

  Fossil fuels
• Carbon Dioxide is also known as?

  Greenhouse gas
• Consequences of Global Warming:

  • Rising sea levels and coastal flooding.
  • Changed rain patterns resulting in droughts and crop failure.
  • Increase in insect diseases in regions.
• Use of CFC’s or _____ lowers ozone by breaking up O3 They are also released from some refrigerators and air conditioning systems. Consequences: skin cancer, cataracts?


  Chlorofluorocarbons
• This is where all weather occurs. From 0km to 10km above sea level. Temperature goes from warm to cold as you increase in altitude?


  Troposphere
• Means layer or spread out?

  Strato
• Contains the Ozone layer. From 10km to 50km above sea level. Plane often fly here. Temperature goes up as you rise in altitude due to the ozone absorbing the sun's heat?


  Stratosphere
• Means middle?

  Meso
• Middle layer of the atmosphere. Starts from 50km above sea level and ends at 80km. Protects the Earth from asteroids. Temperature goes down as altitude goes up?


  Mesosphere
• Means heat?

  Thermo
• Temperatures reach up to 1800 degrees Celsius or 3272 degrees Fahrenheit. 80km above sea level and has no definite end. As you increase in altitude, temperature goes up?


  Thermosphere
• Sun's energy heats molecules to become ions. 80km to 500km in the atmosphere. Known for causing Aurora Borealis. Temperature goes up as you increase in altitude?


  Ionosphere
• Extends from 500km and extends into space. Satellites orbit Earth in this layer. Temperature increase as you increase altitude?


  Exosphere
• Horizontal movement of air?


  Wind
• Wind is caused by:

  • Differences in temperature
  • Differences in pressure
• Make the molecules move faster and spread out?


  Warm air
• Warm air is:

  • rises
  • less dense
• Makes the molecules move slower and grouped together?


  Cold air
• Cold air is:

  • sinks
  • more dense
• Rising air creates?

  Low pressure
• Sinking air creates?

  High pressure
• 2 types of winds:

  • Global winds
  • Local winds
• Patterns of wind that happen all over the world. They are created by the spin of the earth and the difference in temperatures?


  Global winds
• These winds blow close to the north and south poles. They blow away from the poles and curve east to west. These winds are cold, dry winds?


  Polar Easterlies
• These winds predict most of our weather. They blow from west to east across the globe?


  Prevailing Westerlies
• Winds in one particular area?

  Local winds
• Air moves from the sea during the day?

  Sea Breeze
• The main way the atmosphere is heated?

  Convection