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____________ is the measure of how many different species live in a particular ecosystem.
__________ farming is farming that sells produce for profit.
____ is a sum of money owed by one country to another country.
_____________ is the removal of trees to clear an area of forest for commercial purposes.
__________ is the responsible travel to natural areas in order to have minimal impact on the local ecosystem.
Soil _______ is the removal of topsoil faster than it can be replaced.
Mineral __________ is the removal of commercially valuable amounts of solid mineral resources from the earth.
Commercial _______ sells produce to food retailers or food processing companies.
_______ is the business of felling (cutting down) trees for sale as timber or pulp.
________ include ores, which contain metals, such as iron; precious stones, such as diamonds; building stones, such as granite; and solid fuels, such as coal.
Debt _________ is the relief of national debt in return for the protection of rainforests.
Some countries receive debt ______ in return for protecting their rainforests.
_________ logging is the process of cutting out mature or inferior trees, to encourage the growth in a forest or wood.
Topsoil is the most fertile and nutrient rich top layer of ____.
___________ farming is farming only for the benefit of the farmer and their family.
Agriculture is another word for _______.
______________ is meeting the needs of the present without compromising the needs of future generations.
