Wednesday, September 5, 2007

Hi students!
Today, I want you to do the following:

Study the information given below:
-2 types of acid deposition:
Wet-acidic, fog, and snow
Dry-acidic gases and fly ash

-Acid rain occurs when sulfur dioxide (SO2) and nitrogen oxide (NOx) react in the atmosphere with water, oxygen, and other chemicals to form various acidic compounds.
SO2 + NOx H2O + O2 + other chemicals=Acidic Compound
-Burning fossils fuels like coal, natural gas, and oil to generate electricity
-Carbon monoxides which are released from vehicles
-Respiratory problems: dry coughs, asthma, headaches, eye, nose, and throat irritation (pollution)
-Severe brain damage or death (pollution)
-Alzheimer's disease (pollution)
-Damage man-made materials and structures
-marble, limestone, and sandstone can easily be dissolved by acid rain
-causes carvings and monuments in stones to lose their features
-pH level of lakes and streams affected (between 3-5)-destruction of marine life
-Destruction of plants, slower growth, injury or death of forests, loss of nutrients in foliage makes trees more susceptible to damage by other environmental factors.

Task:
Find information on acid rain, Alzheimer's disease, destruction of marine life and destruction of plants.

Go to this link: English for Science and Technology