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17 Cards in this Set
- Front
- Back
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What are five categories of water use which the provincial and federal government regulate for water quality |
irrigation human drinking water protection of addict life livestock drinking swimming |
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list four different groups of invertebrates that can be found in freshwater systems |
water stridden mosquito larva water boat man flatworm |
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identify five chemicals that are regularly monitored in aquatic systems |
dissolved oxygen acidity pesticide heavy metals plant nutrients |
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what effect does spring acid shock have on aquatic organisms |
it can affect the eggs of a aquatic organisms |
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identify an invertebrate family that would likely be among the first to die if the pH of its habitat decreased |
insects |
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explain the term toxicity |
how poisonous a substance is |
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explain the following statement about table salt: The LD50 is 3000 mg/kg for rats. |
50% of rats died In the tests LD stands for lethal doses |
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how can heavy metals harmful |
it can affect normal development and cause permanent brain damage or even death to kids. |
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list four greenhouse gases |
water vapor carbon dixocide methane nitrogen oxides |
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what pollutant is removed when people use scrubbers |
sulfur dioxicide |
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what are the scrubbers chemical reaction create |
gypsum |
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why is carbon monoxide harmful to us and animals |
it is a silent killer it is colorless and odorless gas |
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identify three ways that global warming might affect our world |
violent storms flooding of coastal areas spread of diseases |
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what factor has contributed to the thinning of the ozone layer |
the cfc reacting with the ozone |
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what is happening as a result of this thinning |
harmful UV rays come through |
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what are countries doing to protect the ozone layer |
they have signed an international agreement |
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