What is measuring how polluted the air is?
and
What is guessing the levels of pollution that is coming from buildings?
100
What is the pH of a neutral substance, a acid substance and a basic substance?
What is 7 for neutral, 6 or lower for acid, and 8 or higher for basic?
100
What are atmospheric gases that trap heat?
What are greenhouse gases?
100
What is pesticides?
What is chemical that kills pests?
100
What is toxicity?
What is the description of how poisonous a substance is?
200
What are two major air pollutants that forms both smog, acid rain, and also gives smog it's distinctive colour?
What is sulfur dioxide and nitrogen oxide?
200
What are invertebrates?
What are animals that do not have a back bone?
200
What is a non polluntant chemical that is in the air?
What is carbon dioxide?
200
What are the affects of phoshorus and nitrogen content on aquatic organisms?
What is the cause of increased growth in algae and plants that causes more decomposers and dissolved oxygen to decrease?
200
What chemicals are most likely responsible for increases in algae growth in lakes?
What is nitrogen and phosphorus?
300
What gas is colorless and ordorless that are formed by vehicles?
What is carbon monoxide?
300
What are the chemical factors that affect organisms?
What is acidity, heavy metals, pesticides, dissolved oxygen, nutrients (nitrogen and phosphorus), and salts (sodium chloride and magnesium sulfate?
300
What are some examples of greenhouse gases?
What is water vapour, carbon dioxide, methane, and nitrogen oxides?
300
What happens to the fish when the pH lowers to 4.5?
What is disappearance of fish?
300
What are the effects of pesticide run off?
What are biomagnifications and staying in the environment?
400
The air you take in contains how many %'s of nitrogen, oxygen, and other chemicals?
What is 78% nitrogen, 21% oxygen and 1% other chemicals?
400
What are the 5 categories / guidelines for water use?
What are drinking water for humans, drinking water for livestock, irrigation, recreation centers, and safety of the oceanic life?
400
What is global warming?
What is average tempertures around the world that starts to change?
400
What is LD50?
What is lethal dose to kill 50% of animals?
400
What does the level of dissolved oxygen depend on?
What is temperature, turbulence (wind), amount of photosynthesis and the amount of organisms using oxygen?
500
What is the equation for sulfur dioxide and limestone reaction?
What is sulfur dioxide + water + limestone + oxygen -> gypsum + carbon dioxide?
500
What is spring acid shock?
What is acidic deposits that build up in ice and snow during winter. When the snow melts in the spring, the acid water will go into the aquatic systems?
500
What is ozone layer?
What is a layer that protects the Earth?
500
What are the affects of heavy metals?
What is the affect on normal development, the cause of permanent brain damage, and or death?
500
How are chloroflourocarbons damaging to the atmosphere?
What are things such as hairspray and fire extinguishers that are change into chemicals from UV rays and break down the upper atmosphere?