Environmental Studies

Replies / Views	Last post
Some 3/4 of the total soil loss from erosion in the United States is carried away by water. ... Started by APUS57	1 Replies 102 Views	Jul 22, 2018 by katkat_flores
Compared to conventional tillage systems, most conservation tillage systems rely more heavily on ... Started by kellyjaisingh	1 Replies 258 Views	Jul 22, 2018 by anoriega3
Conservation tillage systems are now in use on some 75 of the cropland in the USA. Indicate ... Started by Destiiny22	1 Replies 239 Views	Jul 22, 2018 by bubulittle310@msn.cn
The T values are the maximum losses of soil by erosion that can be tolerated without a reduction in ... Started by waynest	1 Replies 76 Views	Jul 22, 2018 by ashely1112
Which of the following types of chemical would be classed as a pesticide? A) herbicides B) ... Started by Lisaclaire	1 Replies 108 Views	Jul 22, 2018 by lorealeza77
A soils contaminated with a heavy metal may be bioremediated by ________. A) growing and ... Started by newyorker26	1 Replies 43 Views	Jul 22, 2018 by spencer.martell
Of the following metals often found in sewage sludge, which would most likely become toxic to ... Started by Medesa	3 Replies 43 Views	Jul 22, 2018 by kmb352
In the design of a ________ type landfill, evapotranspiration by cover vegetation should be ... Started by Mr3Hunna	1 Replies 50 Views	Jul 22, 2018 by Bsand8
Poor inner city children are exposed to lead toxicity primarily from ________. A) uptake from ... Started by Zulu123	1 Replies 40 Views	Jul 22, 2018 by juwms
Herbicides are generally the most toxic of pesticides to soil organisms. Indicate whether the ... Started by jilianpiloj	1 Replies 85 Views	Jul 22, 2018 by duy1981999
One disadvantage of bioremediation is that this technology is usually much more expensive than ... Started by NClaborn	1 Replies 35 Views	Jul 22, 2018 by sierramartinez
Soil washing is a commonly used method of bioremediation. Indicate whether the statement is true ... Started by luvbio	1 Replies 67 Views	Jul 22, 2018 by Eazy416
Lead toxicity to children that get soil into their mouths can be reduced by heavy P fertilization of ... Started by lbcchick	1 Replies 32 Views	Jul 22, 2018 by at
The final cover on any type of landfill should consist of soil material with rapid permeability and ... Started by haleyc112	1 Replies 70 Views	Jul 22, 2018 by ultraflyy23
At which of the following soil moisture potentials (expressed as kPa) is the soil water held most ... Started by CORALGRILL2014	3 Replies 320 Views	Jul 22, 2018 by macagn
In which of the following situations would you expect downward movement of soil water through the ... Started by Pineapplelove6	1 Replies 55 Views	Jul 22, 2018 by scrocafella
Nearly all organic compounds from which living beings are made have as their backbone, chains or ... Started by sc00by25	1 Replies 87 Views	Jul 22, 2018 by perkiness
Which of the following is a (are) greenhouse gas(es) contributed to the atmosphere by soils? A) ... Started by plus1	1 Replies 26 Views	Jul 22, 2018 by cassie_ragen
Which of the following pools contain the largest amount of the world's carbon? A) soil B) ... Started by bobypop	1 Replies 23 Views	Jul 22, 2018 by bookworm410
After drying to eliminate the water in plant litter, which two elements account for about 80 of the ... Started by ashley	1 Replies 32 Views	Jul 22, 2018 by kbennett34
The tenacity with which water is held in soils is directly related to the soil moisture content; the ... Started by mia	1 Replies 65 Views	Jul 22, 2018 by kbennett34
Where high-value crops or individual ornamental shrubs are to be grown and water is expensive, the ... Started by acc299	1 Replies 109 Views	Jul 22, 2018 by Dunkey
Detritus consists of: A) living organisms and cells. B) dead tissues and wastes. C) ... Started by amal	3 Replies 81 Views	Jul 22, 2018 by kthug
Ammonium fixation would be expected to be greatest in soils containing a lot of ________. A) ... Started by Redwolflake15	1 Replies 28 Views	Jul 22, 2018 by cloud
The most common form of on-site waste water treatment for homes not hooked up to sewer lines is the: ... Started by daltonest1984	1 Replies 63 Views	Jul 22, 2018 by Rilsmarie951