Human Impact Starts with ?
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.