(Q1) LESSON 2

• POLLUTION - Refers to the accumulated  contamination of different  settings in the environment :  atmosphere, water and land
• AIR POLLUTION

  • It refers to the  contamination of air in  the environment
  • It may cause  suffocation or difficulty  in breathing
• WATER POLLUTION - Is due to the  chemical, biological and all  sorts of physical  pollutants that  degrade the  quality of water.
• EUTROPHICATION: Is the excessive amount of nutrients in water. It is characterized by  increased plant and algae growth or algal bloom that turns clear  water to green.
• NOISE POLLUTION - Refers to excessive  noise in the environment that  may cause hearing  impairments, stress,  irritation, fatigue  and emotion.
• LAND POLLUTION

  • Refers to the  exposed wastes on  land
  • it may also destroy  the ecosystem  in the  community once the  soil is contaminated
• MINING: a procedure done to acquire  minerals from  land
• ILLEGAL MINING

  • when there is no permit secured  from government authorities
  • The equipment and procedures that    will damage the environment and   people.
• DEFORESTATION - clearing of plants  and trees in the forests. It is done for  mining purposes,  commercial purposes,  and to produce wood  materials.
• SOIL EROSION - The transfer of  soil from one place  to another and it is  caused by strong  winds, water and transferred to  another place by  humans.
• NATURE'S PROBLEMS

  1. POLLUTION
  2. ILLEGAL MINING
  3. DEFORESTATION
  4. SOIL EROSION
  5. CYANIDE POISONING
  6. CORAL REEF DEGRADATION
  7. OIL SPILL
  8. PESTICIDE DRIFT
  9. FLASH FLOOD
  10. GLOBAL WARMING
• TYPES OF POLLUTION

  1. AIR POLLUTION
  2. WATER POLLUTION
  3. LAND POLLUTION
  4. NOISE POLLUTION
• CYANIDE POISONING - Divers pour poison on  the reef, which stuns the fish, kills the coral  polyps, and destroys  the coral. It then leaves  the marine creatures or  organisms homeless.
• CORAL REEF DEGRADATION - Refers to the  gradual destruction of  coral reefs  caused by natural  man or man  made events.
• OIL SPILL - A technological hazard  involving the release of  crude oil or constituents into  the environment.
• PESTICIDE DRIFT

  • Pesticide is a chemical  substance used on plants to  kill insects that feed on  them.
  • Pesticide is a toxic  substance and may cause  disease or death when  ingested by humans and  animals.
• FLASH FLOOD - A rapid flooding  of low – lying  areas- washes  rivers, dry lakes and basins.
• 2 TYPES OF GLOBAL WARMING

  1. GREENHOUSE  EFFECT:
  2. CLIMATE CHANGE
• GREENHOUSE  EFFECT: The heat and light  from the sun enters  but it is prevented  from escaping  because of the  gases.
• CLIMATE CHANGE: A long term change  in the statistical  distribution of  weather patterns over periods ranging  from decades to  millions of years.
• CONTAMINANTS: Any substance or material that pollute,  poison and make something impure
• FOSSIL FUELS: produced from burning dead plants  and animals
• PARTICULATES: Small substances or minute particles  present in air.