Unit C Review: Environmental Chemistry

•A bag of garden fertilizer has the label “10-5-15.” The three numbers on a fertilizer label represent the percent composition of

• nitrogen, phosphorus, and potassium

• nitrogen, sodium, and potassium

• carbon, phosphorus, and hydrogen

• carbon, oxygen, and hydrogen

•The nitrogen cycle generates nitrogen from which of the following processes?

• •lightning, decomposition, photosynthesis

• •lightning, decomposition, bacteria

• •photosynthesis, decomposition, bacteria

• •photosynthesis, lightning, bacteria

Effluent is:

• Purified wastewater

• Sewage

• Storm runoff

• Septic sludge

•Sewage is:

• •dissolved and undissolved materials coming from your home

• •treated water released back into the river or lake

• •underground tank used for decomposing waste material

• •large pipes for handling excessive street water after rain

•Hydrocarbons are made up of

• •hydrogen, oxygen, carbon

• hydrogen, selenium, phosphorous

• carbon dioxide, propane, oxygen

• •water vapour, nitrogen, sulfur

•Fungicides would kill:

• dandelions

• mosquitos

• aphids

• mushrooms

•pesticide would kill:

• dandelions

• mosquitos

• weeds

• mushrooms

•Which of the following do the Safety Data Sheets (SDS) NOT tell you

• •chemical composition

• •chemical features

• •handling precautions

• •methods to use the chemical

•A neutralization reaction always produces:

• •acid and a base

• •carbon dioxide

• •a salt and water

• •calcium sulfate

•Leachate is:

• •a lethal dose given to an organism

• •waste water used in your home

• •liquid that dissolves and carries substances as it passes through soil

• •a greenhouse gas