Brookings School District



Name ______________________

HUMAN IMPACT STARTS WITH ?

(Chapter 6)

_B_ __ __ __ __ __ __ __ __ __ __ __, the sum total of the variety of organisms in the biosphere, is a measure of the health of an ecosystem.

A _N_ __ __ __ __ __ __ __ __ __ __ __ resource is a necessity of life (resource) which can NOT be replenished by natural means; Ex: fossil fuels

The destruction of forests is called _D_ __ __ __ __ __ __ __ __ __ __ __ __

Farming strategy in which large fields are planted with a single crop variety year after year =

_M_ __ __ __ __ __ __ __ __ __ __

A species that has died out is said to be _E_ __ __ __ __ __ __.

A _R_ __ __ __ __ __ __ __ __ resource is a necessity of life (resource) which can regenerate quickly and that is replaceable; Ex: trees, water

The development of highly productive crop strains and the use of modern agriculture techniques to increase yields of food crops happened during the

_G_ __ __ __ __ _R_ __ __ __ __ __ __ __ __ __

_S_ __ __ __ __ __ __ __ __ __ __ development is a way of using natural resources without depleting them and of providing for human needs without causing long term harm to the environment

Increasing the concentration a harmful substance in organisms at higher trophic levels in a food chain or web =

_B_ __ __ __ __ __ __ __ __ __ _M_ __ __ __ __ __ __ __ __ __ __ __ __

Any harmful material that can enter the biosphere through land, water, or air is called a

_P_ __ __ __ __ __ __ __ __

Soil _E_ __ __ __ __ __ __ wearing away of the surface soil by water and wind happens when plants are removed and roots don’t anchor the soil.

_D_ __ __ __ __ __ __ __ __ __ __ __ __ __ __ is a process caused by a combination of poor farming practices, overgrazing, and drought that turns productive land in areas with dry climates into deserts

An _E_ __ __ __ __ __ __ __ __ __ species is one whose population size is rapidly declining and will become extinct if the trend continues without intervention.

_S_ __ __ __ is a mixture of chemicals (smoke + fog) that occurs as a gray-brown haze in the atmosphere and can cause health problems for humans.

_A_ __ __ __ rain containing nitric and sulfuric acids caused by burning fossil fuels can damage ecosystems.

A _T_ __ __ __ __ __ __ __ __ __ species is likely to become endangered if not protected.

HABITAT _F_ __ __ __ __ __ __ __ __ __ __ __ __ happens when ecosystems are split into small areas due to human development.

_I_ __ __ __ __ __ __ __ SPECIES are plants or animals that have migrated or been introduced into places where they are not native and for which there are no natural predators or parasites to control their population

The wise management of natural resources, including the preservation of habitats and wildlife

= _C_ __ __ __ __ __ __ __ __ __ __ __

_K_ __ __ __ __ Accord is an agreement, aimed at reducing global warming, that asks participants to reduce by 2012 their greenhouse gas emissions to a percentage of their 1990 emission levels

Atmospheric layer made of 03 gas which protects us from the sun’s ultra-violet radiation that has been depleted due to the use of CFC’s = _O_ __ __ __ __ layer

The increase in the average temperatures of the Earth that has been made worse by the burning of fossil fuels is called _G_ __ __ __ __ __ _W_ __ __ __ __ __ __

The _E_ __ __ __ __ __ __ __ __ __ __ __ __ _P_ __ __ __ __ __ __ __ __ __ Agency monitors and enforces environmental regulations, provides education on environmental issues, conducts environmental research, and provides funding for environmental programs.

_M_ __ __ __ __ __ __ __ Protocol was signed by almost 200 countries, including the United States, which agreed to reduce (and eventually stop) the use of ozone depleting chemicals.

Your _C_ __ __ __ __ __ _F_ __ __ __ __ __ __ __ __ is the total amount of greenhouse gas emissions caused directly and indirectly by your activities.

_C_ __ __ __ __ __ __ _B_ __ __ __ __ __ __ __ programs allow endangered species to breed in zoos or wildlife preserves until their numbers increase and they can be returned to their natural habitats.

_A_ __ __ __ __ __ __ __ __ __ __ energy refers to any source of usable energy (solar, wind, tidal, biomass) intended to replace the undesired consequences of using fossil fuels as an energy source.

A pesticide called _D_ __ __ concentrated in the body of eagles and caused them to lay eggs with weak shell.

A _D_ __ __ __ _Z_ __ __ __ is an area in which the addition of an abundance of limiting nutrients like nitrogen and phosphorus causes an algal bloom, blocking sunlight, and causing the death of organisms below.

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