ECOTOURISM 2 Crossword

a process using organisms to remove or neutralize contaminants (e.g. petrol), mostly in soil or water
the aerobically decomposed remnants of organic matter
the conversion of forested areas to non-forest land for agriculture, urban use, development, or wasteland
the scientific study of living organisms and their relationships to one another and their environment
the process in which the emission of infrared radiation by the atmosphere warms a planet's surface
combustion (by chemical oxidation) of waste material to treat or dispose of that waste material
the agricultural practice of cultivating two or more crops in the same space at the same time
the removal of carbon dioxide from the Earth's atmosphere and storage in a sink as when trees absorb CO2 in photosynthesis and store it in their tissues
is development that meets the needs of the present without compromising the ability of future generations to meet their own needs
the external conditions, resources, stimuli etc. with which an organism interacts
recycling in which the quality of an item is diminished with each recycling
household wastewater that contains solid waste
a measure of the biological productivity of an area
man-made, not natural
an ecologically based farming system
a characteristic of an organism that has been favored by natural selection
one substance taking in another
producing potable or recyclable water by removing salts from salty or brackish water
the repositioning of soil from an aquatic environment
the study of how energy flows within an ecosystem
a semi-enclosed coastal body of water with one or more rivers or streams flowing into it, and with a free connection to the open sea
household waste water that has not come into contact with toilet waste
the movement of chemical in the upper layers of soil into lower layers or into groundwater by being dissolved in water
domestic waste water from baths, basins, showers, laundries, kitchens and floor waste (but not from toilets)
solid or liquid particles suspended within the atmosphere
not requiring air or oxygen
the fuel produced by the chemical and/or biological processing of biomass
a chlorinated hydrocarbon used as a pesticide that is a persistent organic pollutant
an acute water shortage relative to availability, supply and demand in a particular region
a discharge or emission of liquid, gas or other waste product
land with a canopy cover greater than 30%
safe to drink
the second pillar of the waste hierarchy - recovering value from a discarded resource without reprocessing or re-manufacture
any composted or non-composted organic material, excluding plastic
derived from a living organism
the materials derived from photosynthesis
potent greenhouse gases which are not regulated by the Kyoto Protocol
organic material in soil lending it a bark brown or black coloration
the probability of a (negative) occurrence
waste in a state between liquid and solid
a pipe conveying sewage
national climate change annual plan
sharp reduction in the population of a species when its numbers exceed the carrying capacity of its habitat
confined outdoor or indoor space used to raise hundreds to thousands of domesticated livestock
strongly swimming organisms found in aquatic systems
part of a metal-yielding material that can be economically and legally extracted at a given time
polychlorinated biphenyl
originally a combination of smoke and fog but now used to describe other mixtures of pollutants in the atmosphere
substance that can react with hydrogen ions in a solution and thus hold the acidity or pH of a solution fairly constant
large natural body of standing fresh water formed when water from precipitation, land runoff, or groundwater flow fills a depression in the earth