1. Protecting The Enivronment

2.  Pesticides are chemical that kill or control organisms that humans consider  are used to kill insects  are used to kill weeds  Pesticides can have negative effects ◦ What are some examples? ◦ Resistance ◦ Biomagnification

3.  Synthetic Fertilizers contains plant such as nitrates.  Fertilizers are used to improve the yield of crops  Fertilizers can also cause eutrophication, which is a build up of in the water

4.  As human population increases, so does the demand for energy.  In Alberta, most of our energy is produced from. ◦ Burning fossil fuels produces a lot of  Carbon dioxide forms a blanket over the Earth and traps heat

5.  Page 298 ◦ Questions 1-5

6.  Life has changed a lot because of refrigerators and freezers ◦ These appliances use a compressor, a motor, and a liquid called a  Refrigerators used to use CFCs (Chloroflorocarbons), however we have found out that they are harmful to the  What is the ozone layer?

7.  Why do we produce so much more waste per individual than we did 25 years ago?  3R’s : Reduce, Re-use, Recycle

8.  Look at page 304-305, what can we do?