Read e-book online Inquiry into Environmental Pollution PDF

By R. H. Horwood (auth.)

ISBN-10: 0770509819

ISBN-13: 9780770509811

ISBN-10: 1349815179

ISBN-13: 9781349815173

ISBN-10: 1349815195

ISBN-13: 9781349815197

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Furthermore, water is an effective carrier of particles, even if 24 they do not actually dissolve. Fine bits of soil, especially silt and clay, are carried in streams that are fed from flowing surface water. Small pieces of bark, leaves, insect wings, and pollen grains drift in water. Cells of bacteria, algae, and simple animals are suspended in water and are carried along with it. So, too, are other tiny particles, and all of these give the water containing them a cloudiness that is called turbidity.

Keep them off your clothes and skin. Laboratory Activity 2-4 How does sulphur dioxide affect acid-base balance? Sulphur dioxide is one of the commonest air pollutants, and one of the worst. It is common because many fuels (such as coal) contain sulphur, and burning the fuel releases the sulphur to form sulphur dioxide gas. The idea of this experiment is to find out why sulphur dioxide gas is undesirable and unpleasant in the air. There are several ways of making the gas. The easiest is to heat a lump of sulphur, about the size of a small green pea, in a deflagrating spoon or in a holder formed from aluminum foil.

What possible explanations could account for the distribution of the sludge worms? 7 Other Possibilities We have explored a few aspects of the importance of water in the ecosystem. The emphasis has been on the acid-base balance and on the role of water as a solvent for gases. There are, of course, a great many other dissolved substances that are of environmental significance. Some of these are described in other chapters; some are mentioned in the questions that follow; and some are left for you to explore on your own.

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Inquiry into Environmental Pollution by R. H. Horwood (auth.)


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