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the reduction in the quality of the land; the vegetation cover and soil moisture caused by the wrong farming practices.
the percentage increase per year in proportion to the total population that live in urban areas...
the GDP minus the effect of price rises caused by inflation so the figure can be used to compare...
an amount that has to be added to the balance of payments account to make sure that it balances...
a policy where goods do not flow freely between countries but are restricted by tariffs;...