Read the following text and use the words given in the box to fill in the blanks

Read the following text and use the words given in the box to fill in the blanks. less normally widely

less

normally

widely

many

pollution

into

land

humans

contamination

from

            If you've read our articles on water pollution and air pollution, you'll know that pollution can be defined generally along these lines: it's the introduction (1) __________. the environment of substances that don't (2) _____________ belong there, which, in great enough concentrations, can have harmful effects on plants, animals, and (3) ___________ . We can define land (4) _______either narrowly or broadly. Narrowly defined, it's another term for soil (5) ________ also define it more (6)__________ to include garbage and industrial wasta agricultural pesticides and fertilizers, impacts (7) ____________ mining and other forms of industry, the unwanted consequences of urbanization, and the systematic destruction of soil through over-intensive agriculture; we'll take (8) ____________ pollution to mean any kind of long-term land damage, destruction, degradation or loss.

            There are (9) ____________ different ways of permanently changing the land, from soil contamination to general urbanization. Some, such as huge landfills or quarries, are very obvious; others, such as atmospheric deposition are much (10) _____________ apparent