Sets (9)
Classes (0)
Stratospheric Ozone Depletion definitions
| # | Definition | Sets |
|---|---|---|
| 1 | caused by ozone-depleting chemicals (odcs) such as cfcs, methyl chloroform or trichloromethane (chcl3), carbon tetrachloride (ccl4), halon (haloalkanes), methyl bromide (ch3br)— all of which attack stratospheric ozone. the cl or br atoms "attack" the ozone molecules and cause the thinning of this layer. global agreement to decrease odc - montreal protocol (1987) | 12 sets |
| 2 | the thinning of the layer of ozone in the stratosphere caused by reactions involving humanmade compounds, such as chlorofluorocarbons (cfcs). the stratospheric ozone forms a protective layer that shileds earth by absorbing cell-damaging ultraviolet radiation. | 6 sets |
| 3 | global problem | 4 sets |
| 4 | caused by ozone-depleting chemicals (odcs) such as cfcs, methyl chloroform or trichloromethane (chcl3), carbon tetrachloride (ccl4), halon (haloalkanes), methyl bromide (ch3br)— all of which attack stratospheric ozone. the cl or br atoms "attack" the ozone molecules and cause the thinning of this layer. global agreement to decrease odc - montreal protocol (1987) | 4 sets |
| 5 | caused by ozone-depleting chemicals (odcs) such as cfcs, methyl chloroform or trichloromethane (chcl3), carbon tetrachloride (ccl4), halon (haloalkanes), methyl bromide (ch3br)— all of which attack stratospheric ozone. the cl or br atoms "attack" the ozone molecules and cause the thinning of this layer. | 4 sets |
| 6 | pollution effecting the upper atmosphere, getting holes in the ozone layer, causing over heating and is dangerous for life | 3 sets |
| 7 | ozone layer in high stratosphere (25-40 km altitude) absorbs about 95-99% of ultraviolet radiation. | 3 sets |
| 8 | caused by ozone-depleting chemicals (odcs) such as cfcs, methyl chloroform of trichloromethane (chcl3), carbon tetracloride (ccl4), halon (haloalkanes), methyl bromide (ch3br)- all of which attack stratospheric ozone. the cl or br atoms "attack" the ozone molecules and cause the thinning of this layer. global agreement to decrease odc- montreal protocol (1987) | 2 sets |
| 9 | caused by ozone-depleting chemicals (odcs) such as cfcs, methyl chloroform or trichloromethane (chcl3), carbon tetrachloride (ccl4), halon (haloalkanes), methyl bromide (ch3br)— all of which attack stratospheric ozone. the cl or br atoms "attack" the ozone molecules and cause the thinning of this layer. global agreement to decrease odc - montreal protocol (1987) | 2 sets |
| 10 | stratospheric ozone levels are rapidly droping over south pole. at ground-level, ozone is a pollutant, but in the stratosphere it screens uv radiation | 2 sets |
| 11 | caused by chlorofluorocarbons entering the atmosphere and destroys this protective shield. | 2 sets |
| 12 | allows harmful uv rays through | 2 sets |
| 13 | the breakdown of natural or "good" ozone in the stratosphere by the emitting of chloroflurorocarbons from refrigeration | 1 set |
| 14 | caused by ozone depleting chemicals (ocds) such as cpcs, methyl chlorofom or trichloromethan (chci3) carbon tetrachloride (cci4) halon (haloalkanes) methyl bromide (ch3br) all of which attack stratospheric ozone. the ci or br atoms attack he ozone molecules and cause the thinning of the layer. global agreement to decrease odc = montreal protocol 1987 | 1 set |
| 15 | ozone is split up when it reacts with molecules that contain hydrogen, nitrogen, chlorine, and bromine. when ozone gets broken up, more uv reaches ground level. effects: increased sunburns increased cataracts increased incidences of skin cancers | 1 set |
| 16 | unit = cfc 11 equivalents | 1 set |
| 17 | classic example of an unanticipated consequence from emissions of what were thought to be inert, harmless gas (cfcs) 90% of earths ozone in stratosphere ozone is constantly being formed and destroyed, steady state, cyclic reaction primary shield against uv-b radiation | 1 set |
| 18 | caused by ozone depleting chemicals, such as cfcs, methyl chloroform or trichloroform (chcl3), carbon tetrachloride (ccl4), halon (haloalkanes), methyl bromide (ch3br)- all of which attack stratospheric ozone. the cl or br atoms "attack" the ozone molecules and cause the thinning of this layer. global agreement to decrease odc - montreal protocol (1987) | 1 set |
| 19 | caused by ozone-depleting (ocds) such as cfcs, methyl chloroform or trichloromethane (chcl3), carbon tetrachloride (ccl4), halon (haloalkanes), methyl bromide (ch3br)---- all of which attack stratospheric ozone. the cl or bl atoms " attack " the ozone molecules and cause the thinning of this layer. global agreement to decrease odc --- montreal protocol (1987) | 1 set |
| 20 | -ozone in the stratosphere screens uv radiation - a 1% decrease in ozone could result in a million extra human skin cancers per year worldwide -decreased agricultural production and reduced plankton in the ocean, the basis of food chain -discovered in 1985 that stratospheric ozone levels over south pole were rapidly dropping during september adn october --occuring since at least 1960 ==chlorofluorocarbons (cfc) are the cause. -----non tocix not flammable, chemically inert, cheap -----refrigerators, air conditioners, aerosol spray cans. | 1 set |
| 21 | cause by ozone-depleting chemicals (odcs) such as cfcs, methyl chloroform or trichloromethane (chcl3), carbon tetrachloride (ccl4), halon (haloalkanes), methyl bromide (ch3br) - all of which attack stratospheric ozone, the cl or br atoms "attack" the ozone molecules and cause the thinning of this layer. global agreement to decrease odc - montreal protocol (1987) | 1 set |
| 22 | caused by ozone depleting chemicals such as cfcs, methane chloroform or trichloromethane, carbon tetrachloride - all of which attack stratospheric ozone | 1 set |
| 23 | caused by odcs such as cfcs, chcl3, ccl4, halon, ch3br | 1 set |
| 24 | caused by ozone-depleting chemicals (odc's) such as cfc's | 1 set |
| 25 | caused by ozone-depleting chemicals (odc's) such as cfc's, methyl chloroform, or trichloromethane (chcl3), carbon tetrachloride (ccl4), halon (haloalkanes), methy bromide (ch3br)-all of which attack stratospheric ozone. the cl or br atoms "attack" the ozone molecules and cause the thinning of this layer. global agreement to decrease odc-montreal protocol (1987) | 1 set |
| 26 | caused by cfcs (from refrigerants & aerosols - highly persistent) - cfc broken apart by uv rays; cl is highly reactive; and "steals" an o atom from the o3 | 1 set |
| 27 | the breakdown of natural or "good" ozone in the stratosphere by the emitting of chlorofluorocarbons from refrigeration. cfcs that are released into the atmosphere remain inert or unreactive as they rise slowly to the stratosphere due to their lighter weight. this entire process could take decades | 1 set |
| 28 | caused by ozone-depleting chemicals (odcs) such as cfcs, methyl chloroform or trichloromethane (chci3), carbon tetrachloride (cci4), halon (haloakanes), methyl bromide (ch3br)- all of which attack stratospheric ozone, the cl or br aroms "attack" the ozonemolecules and cause the thinning of this layer. global agreement to drecrease odc-montreal protocol (1987) | 1 set |
| 29 | caused by ozone depleting chemicals (odcs)- cfs's, methyl chloroform, carbon tetrachloride, halon, mehyl bromide all of which attack stratospheric ozone; the cl or br atoms "attack" the ozone molecules and cause the thinning of this layer. global agreement to decrease odc- montreal protocol (1987) | 1 set |
| 30 | caused by ozone-depletion chemicals such as cfcs all of which attack stratospheric ozone. montreal protocol | 1 set |
| 31 | cfc's from cooling agent freon in refrigerators, air conditions, and aerosol cans cause holes in the ozone layer | 1 set |
| 32 | happens over the poles. it is a seasonal occurance caused by cfcs that depleat in the atmosphere into chlorine, carbon and fluorine. they don't go away they just get thinner | 1 set |
| 33 | -chlorofluorocarbons -hydrochlorofluorocarbons the carbon reacts with the ozone | 1 set |
| 34 | the thinning of the ozone layer in the stratosphere; occurs when certain chemicals capable of destroying ozone accumulate in the upper atmosphere | 1 set |
| 35 | the problen still exists the ozone hole (purple) reached its greatest size in 2011 | 1 set |
| 36 | high concentrations of ozone between 16-25km above the surface of the earth absorb ultraviolet radiation that is harmful to people and organisms, and human activities resulting in high levels of chloroforic carbons | 1 set |
| 37 | skin cancer | 1 set |
| 38 | caused by ozone depleting chemicals (odcs) - cfc's, methyl chloroform, carbon tetrachloride, halon, methyl bromide all of which attack stratospheric ozone ; the cl or br atoms "attack" the ozone molecules and cause the thinning of this layer (see class notes for reaction mechanism). global agreement to decrease odc - montreal protocol (1987) | 1 set |
| 39 | o3 absorbs harmful uv . cfc and cl- stratosphere breaks apart cfc and the uv strips off upper atmospheric circulation taken to the poles where there is no ozone but cl | 1 set |
| 40 | the thinning of the ozone layer in the stratosphere; occurs when certain chemicals (such as chlorofluorocarbons) capable of destroying ozone accumulate in the upper atmosphere | 1 set |
| 41 | caused by ozone-depleting chemicals (odcs) such as cfcs, methyl chloroform or trichloromethane (chcl3), carbon tetrachloride (ccl4), halon (haloalkanes), methyl bromide (ch3br)— all of which attack stratospheric ozone. the cl or br atoms "attack" the ozone molecules and cause the thinning of this layer. global agreement to decrease odc - montreal protocol (1987) | 1 set |
| 42 | ozone at low altitudes = beneficial layer protecting us from uv radiation. chlorofluorocarbons are causing the depletion of the ozone layer | 1 set |
| 43 | caused by ozone-depleting chemicals (odcs) such as cfcs, methyl chloroform or trichloromethane (chcl3), carbon tetrachloride (ccl4) and halon. | 1 set |
| 44 | the thinning of the layer of ozone in the stratosphere caused by reactions involving human made compounds, such as chlorofluorocarbons; the stratospheric ozone forms a protective layer that shields earth by absorbing cell-damaging ultraviolet radiation. | 1 set |
| 45 | caused by ozone-depleting chemicals (odcs) such as cfcs, methyl chloroform or trichloromethane (chcl3), carbon tetrachloride (ccl4), halon (haloalkanes), methyl bromide (ch3br)— all of which attack stratospheric ozone. the cl or br atoms "attack" the ozone molecules and cause the thinning of this layer. global agreement to decrease odc - montreal protocol (1987 | 1 set |
| 46 | adverse effects: increase uv: skin cancer, cataracts, chlorphyll damage contaminant:chlorofluorocarbons cfc generation source: re-fridgerant gases, foam blown plastic, microchip cleaning soltuions solutions: ban non-essential cfc's, substitute cleaning solutions | 1 set |
| 47 | the thinning of the layer of ozone in the stratosphere, which shields earth from cell-damaging ultraviolet radiation, caused by chemical reactions involving anthropogenic compounds such as chlorofluorocarbons | 1 set |
| 48 | caused by ozone-depleting chemicals (odcs) such as cfcs, methyl chloroform or trichloromethane (chcl3), carbon tetrachloride (ccl4), halon (haloalkanes), methyl bromide (ch3br)— all of which attack stratospheric ozone. the cl or br atoms "attack" the ozone molecules and cause the thinning of this layer. global agreement to decrease odc - montreal protocol (1987) | 1 set |
| 49 | -polar stratospheric clouds or pscs support the chemical reaction that produces active chlorine which catalyzes (initiates) ozone destruction (ozone holes) -form when temperature goes below -108f -frozen nitric and sulfuric acid -pscs are natural, occur in winter, with no sunlight, antarctica. | 1 set |