2 Section 1 - ResourcesWarm-Up: How are a corn oil and motor oil alike and different?Answer: Both are oil and come from living things. Corn is a renewable resource that grew in one summer. The motor oil is a non-renewable resource that took millions of years to form from the remains of organisms.
3 Natural ResourcesThe parts of Earth’s environment that are useful or necessary for the survival of living organisms.FuelWaterFoodPlants
4 Renewable ResourcesAny natural resource that is recycled or replaced constantly by nature.TreesSunlightWater
5 Nonrenewable Resources Natural resources that are used up more quickly than they can be replaced (ex: petroleum).PlasticPaintGasoline
6 Fossil FuelsFuels formed in Earth’s crust over hundreds of millions of years.OilCoalJet fuelDeiselNatural gas
15 Air PollutionPollutants are substances that contaminate the environment.Air pollutants are soot, smoke, ash, gases, dust, sand, & evaporation of chemicals.
16 Acid precipitationAir pollutants react with water in the atmosphere to form acid rain, with a pH below 5.6.Lucy Lake
17 Greenhouse EffectSunlight that is trapped in Earth’s atmosphere by gases causes the greenhouse effect, which increases temperatures.
18 Global WarmingThe Earth’s average temperature has increased about 1 degree Celsius in the past 100 years, likely as a result of more fossil fuels in the atmosphere.Results? – Changing rainfall patterns, # of storms & hurricanes increases, polar ice caps melt, warmer weather (leads to more tropical diseases)
19 Ozone Depletion Ozone is a form of Oxygen. The ozone layer is 20 km above Earth’s surface, and it absorbs some of the Sun’s UV rays.The thinning of the ozone layer is called ozone depletion, & is caused by pollutant gases, especially CFC’s, which are found in some spray bottles, refrigerators, freezers, and air conditioners.
20 UV RadiationBecause of ozone depletion, the amount of UV radiation that reaches Earth’s surface is increasing, leading to a rise in the # of skin cancer cases, and harming other organisms such as plants and animals.
21 Indoor Air PollutionBuildings that are well-insulated reduce the flow of air into and out of a building, so air pollutants (smoke, carpet fibers, glue, paint, formaldehyde from photocopiers) can build up indoors.
22 Carbon MonoxideCO is a poisonous gas that is produced whenever charcoal, natural gas, kerosene, or other fuels are burned. It can cause serious illness or death.
23 RadonRadon is a naturally occurring, radioactive gas that is given off by some types of rock and soil. It has no color or odor. It can seep into basements, and is the 2nd leading cause of lung cancer!
24 Water PollutionPollution enters water when litter or waste materials are dumped into rivers, lakes, & oceans, when factories and sewage-treatment plants release it into waterways, or when air pollutants are washed out of the sky by rain.
25 Soil LossThe movement of soil from one place to another is called erosion; it is a natural process, but human activities increase it. Eroded soil that washes into a river or stream can block sunlight and slow photosynthesis.Erosion photos
26 Soil PollutionSolid Wastes – dumped in landfills, pollutants seep into the surrounding ground and waterHazardous wastes – waste materials that are harmful to human health or poisonous to living organisms; usually handled separately from trash; treated in ways that prevent environmental pollution.
28 ConservationConservation efforts can help prevent shortages of natural resources, slow growth of landfills, reduce pollution levels, and save people money.Every time a new landfill is created, an ecosystem is disturbed.Reducing the need for landfills is a major benefit of conservation.The 3 Rs of conservation are REDUCE, REUSE, AND RECYCLE!
29 Reduce Use fewer products that are made of fossil fuels. Carpool/walk/ride a bike/take public transportDon’t buy things you don’t need
30 ReuseUse items more than once – ex: reuse canvas grocery bags, donate clothes to charity, use washable dishes rather than disposable ones
31 RecycleRecycling is a form of reuse that requires changing or reprocessing an item or natural resource.Glass, metals, paper, plastics, yard & kitchen waste can all be recycled.