Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
TJ Science
Earth Science chapter 12 Freshwater section 1 and 2
| Question | Answer |
|---|---|
| BOD | Biochemical Oxygen Demand |
| EPA | Enviromental Protection Agency is a branch of the federal govnerment charged with the responsibility of protecting H2O. |
| What is the name of the agency that is responsile for implementing the natural water quality standards in SC | SC Department of Health and Environment SCDHEC |
| concentration | the measure of one substance in a contain volume of another substance. Measure BOD, TSS, DO and Turbidity |
| The measure of how much oxygen is needed and used by organisms during decomposition | BOD- Biochemical Oxygen Demand |
| TSS | Total Suspended Solids |
| The amount of solid particles present in H2O | TSS -Total Suspended Solids |
| Drinking water comes from? | lakes, rivers, reservoirs and ground water (aquafors) |
| Water from public and private sources needs treatment to be safe for human consumption and appealing to drink (True or False) | True |
| A measurement of the substances in H2O besudes H20 modecules. | water quality |
| Some substances in H20 are harmless and tasteless, while others effect taste and color. Give an example | iron |
| Some substances in H20 can be harmful to human health. Give an example | Microrganisms |
| How is water quality measured? | PH, Hardness, conductivity and DCO |
| DCO | measurement of bacteria such as E Coli. |
| A measurement related to the amount of minerals or metals that are conductive in H20 | conductivity |
| measure of how acidic or bagie the H20 is measured ona scale of 0-14 | PH |
| O-=14 | O=acidic, - = neutral, 4=basic |
| Hardness | a measure of 2 minerals, calcium and magnesium in H20 |
| The harder the levels of minerals in the water the harder to make soap later and bubbles True or False | True |
| The presence of mammal's waste in the water may contain diseases causing organisms. True or False | True |
| Cryptosporium | disease causing organisms this parasitic protist one sip can contaminte your water |
| Water treatment plants make H20 safe to drink True or False | True |
| What is the water treatment process? | Filtration, Coagulation, Chlorination |
| The process of removing salt from H20 | Desalination |
| A chemcial alum is added to the H20 to form sticky grolof called flocs. Then the water is filtered againg to remove the flocs | coagulation |
| Choloring is added to the H20 to kill diseases | Chlorination |
| Water is renewable True or False | True |
| When does water shortage occurs? | To little water and a great demand for water |
| A condition of scarce rainfall over a few years. | Drought |
| Drought effects both surface and ground water True or False | True |
| Using a resource wisely so that it is not used up (wise use) | conservation |
| Preservation | not using a resource at all so that it is not used up (no use) |
| Water convervations the 3 R's | Reduce, Reuse, Recycle |
| use less | Reduce |
| using a product over and over again | reuse |
| making new stuff with old stuff | recycle |
| One method of desaltination where H20 us boiled until it evaporates leaving any salt, or other undesirable maerials behind | distillatium |
| Icebergs | fresh water; a controversial source due to climate change |
Created by:
Special KJ
Popular Science sets