EVST 101 Final

A loam soil is a mixture of

Nitrogen and phosphorous stimulate -------- in plants

As a synthetic chemicla pesticide is repeatedly used in t he control of an insect, it gradually loses its effectiveness. This

DDT when used in the US, was most negatively harmful

Topsoil is found in which soil horizon

A soil that allow very little leaching has good

Most plants require substantial quantities of water to replace water lost through

Bioaccumulation is

Which soil particle is the smallest

Infiltration (or percolation) means

In the course of using synthetic chemical pesticides, such as DDT, it was observed that certain species of insects, which had not previously caused significant harm, became serious pests, This phenomenon is know as

Which is NOT a characteristic of subsistence farming

Most plants live best in a soil pH range of

In Virginia, which state agency assists farmers with funding for erosion control and soil conservation measures

Shelter belts are used in agriculture to

The spongy, dark brown or black material that remains from a rotting dead log is called

The kind of erosion caused by rainfall runoff is called

The main cause of dryland soil erosion is

What federal law provided farmers with funds that reduced soil loss

What pesticide incident occurred in Virginia in the 1970's that seriously affected workers' health and fishing in the James River

Soil texture is a measurement of the

The-------- indicates that lack of scientific certainty should not be used as a reason for failing to take measures to prevent potential damage

First generation pesticides refer to

When farmers irrigate their croplands, minerals from the water remain on the soil after evaporation, resulting in

Clay holds lots of water because

Referring to a pesticide as broad spectrum means that

Which agricultural method is best to aviod soil disturbance and soil loss

What disease does DDT help to control

Sustainable agricultural systems

A herbicide would work best to kill

World food prodution may be sustainably increased from current levels by

Which of the following is NOT a major source of soil erosion

The gradual breakdown of rock into soil particles by physical and chemical processes is called

The federal agency responsible for setting allowable tolerances for pesticide residues is the

Which of the following is FALSE

Which soil class is best for agricultural soils

The GReen Revolution in the 1950-60's helped world hunger by

A farmer sprays his crop with a synthetic chemical pesticide to control an insect infestation. the infestaton subsides, then a few weeks later, it actually becomes worse This phenomenon is known as

A pesticide similar to DDT was sprayed on a lake to control mosquitoes.
After a period of a few months, the highest concentration of this
pesticide was found in the

Produce that is grown without the aid of pesticides and other synthetic chemicals is

----------- is the supplying of water to croplands by artificial means

The process of soil being washed or blown away is called

What federal agency monitors farming and soil loss issues

What is one of the concerns about genetically engineered foods

Whivh federal program reimburses farmers for retiring erosion prone land and planting it with trees or greasses

Assured access for every person to enough nutritious food to sustain an active and healthy life is

As a pesticide accumulates in the food chain, this is called

Wjat practice compines chemical and ecological pest control methods

Who wrote the book Silent Spring

the federal law that controls pesticide use is called

Name one of the eight millennium development goals for 2015

Name one of the factors that contribute to the Human Poverty Index

A plan developed by a county government to determine over the long term what development will be locaded is called a

By the yeaer 2200 the World population is expected to be

A new source of income and economic development in developing countries involving recreational activities and wild species observation in unique ecological sites

Biota and the ecosystems they form collectively have value known as

Name of the two factors other than poverty that interact in the poverty cycle

Controlling the rate and pattern of development to achieve quality of life and sustainability is known as

The Act providing funding for enhanced transpotation projects and other modes of transportation than highways is

Providing small loans at a resonable interest rate to enable a person to start a small business in a developing country is termed

The top of the groundwater below the soil surface is called

Relative humidity is a measure of

Rain shadow deserts generally occur

Water that accumulates underground, filling all pores and crevices above an impervious layer, is

What is the largest use of water worldwide

Many fresh water wells in coastal areas now yield salty water, The main cause of this problem is

The freshwater in our environment is found mostly in

Freshwater

Which federal law was passed in 1972 to protect US waters

Channelizing streams to redirect water flow

What percentage of the world's population lacks safe drinking water

The greates hazard of domestic sewage waste is its

the wast water stream entering a sewage treatment plant is generally

Secondary treatment, or biological treatment of waste water mainly involves

Final disinfection of waste water in the US is most generally done by adding

All pollutants that enter natural water bodies via pipes are known as

Examples of non point source pollutants include

Eutrophication refers to the ecosystem changes that occur with the introduction of

The presence of a substance in the environment that because of its chemical composition in quantity prevents the functioning of natural processes and produces considerable environmental and health effects is the EPA definition of pollution

The process whereby chemicla pollutants become concentrated through passage up the food chain is called

The best long term solution to the problem of eutrophication is

Which state agency administers the Clean Water Act

Nontidal wetlands should be preserved because they

Removing sediment from river water for drinking water uses what process

In Virginia, what percent of municipal waste is recycled

Most municipal solid waste in the US is

The treated water released from the waste water treatment plant is called

Waste to energy facilities

The percent of municipal waste placed in landfills is approximately

The greatest component of municipal solid wast is

What percentage of the Virginia population depends upon groundwater for their water supply

NPDES permits do what

Two major categories of potenially toxic chemicals are

During the lifespan of a chemical

The law that provides for the identification and clean up of abandoned toxic waste sites is

The legislation that requires cradle to grave tracking of Hazmat is

Which state agency administers the Safe Drinking Water Act

Heavy metals such as lead, mercury, arsenic, cadmium and chromium are considered hazardous because they are

The legislation that requires employers to notify employees of Hazmat they may come in contact with as a part of their jobs

The policy that specifies the ways Hazmat can be transported across state lines is

What state is the largest exporter of out of state waste

------ was a site near Niagara Falls, NY where Hooker Chemical buried toxi wastes in the 1930s and 1940s, and eventually surfaced during the late 1970s

One of the 3 R's to lessen the amount of wast disposal is

The entire land area from which storm water runoff drains to a particular stream or river is called a

The Emergency Planning and Community Right to Know Act of 1986 requires what report for companies using or discharging hazardous chemicals

Removal of salt from sea water to produce drinking water is referred to as

Whater consumption in modern US homes average around --- galons of water per person per day

Disease causing organisms are known as a

what federal agency administers the Resource Conservation and REcovery Act

Water with pollutants draining from landfills is called