Unit+Review+Guide

 o Know the three nutrients that plants need for growth, and what part of the plant each nutrient helps to develop (number labels on fertilizer bags)  o If a waste can be broken down it is called ____________________.  o Know the role of the bacteria that are present on plant roots  o Be able to give examples of macronutrients and micronutrients  o Know the difference between sanitary landfills and secure landfills  o Know the difference between the different methods in which nutrients are absorbed by plants (active transport, passive transport, osmosis)  o Be able to convert given data into ppm (parts per million)  o Understand the pH scale (acidic vs. basic vs. neutral)  o Understand how diversity of organisms decreases in water systems with decreasing amounts of oxygen (understand how to interpret a table such as the one on p.231 of your textbook.)  o Be familiar with the different indicators and their corresponding colour changes for acids and bases  o Understand Figure 3.27 on p.237 of your textbook  o What is neutralization?  o Understand how DDT affects food webs  o What is LD50? Be able to tell me which substances would be more toxic given their LD50’s.  o What is CaO used for? (HINT: see p.210 in your textbook)  o Explain how calcium carbonate (limestone) affects water systems <span style="margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; mso-list: l0 level1 lfo1; text-indent: -18.0pt;"> o Understand toxicity and the difference between acute and chronic toxicity <span style="margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; mso-list: l0 level1 lfo1; text-indent: -18.0pt;"> o How do CFCs work? <span style="margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; mso-list: l0 level1 lfo1; text-indent: -18.0pt;"> o What is the difference between persistent and non-persistent pollutants? <span style="margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; mso-list: l0 level1 lfo1; text-indent: -18.0pt;"> o Why is it difficult to determine an individual’s risk of harm from exposure to a specific chemical? <span style="margin-bottom: .0001pt; margin-bottom: 0cm; mso-add-space: auto; mso-list: l0 level1 lfo1; text-indent: -18.0pt;"> o Understand the complications that can arise with an algae bloom. <span style="margin-bottom: .0001pt; margin-bottom: 0cm; margin-left: 18.0pt; margin-right: 0cm; margin-top: 0cm;">
 * Environmental Chemistry Unit 3 Review GUIDE **