Question

TRUE FALSE.
1.The pollutants present in sewage may cause diseases ________.
2.water borne diseases are caused by using clean water __________.
3.some substances dissolve in water and are invisible they are called suspended impurities _______.
4.A special type of filtration apparatus is fitted with the water tap to filter water in homes___.
5. Gravity pulls all objects towards the surface of the earth ________.

Answer 1

Answer:

Organic pollutants and nutrients

1. Sewage is a complex mixture of chemicals, with many distinctive chemical characteristics. These include high concentrations of ammonium, nitrate, nitrogen, phosphorus, high conductivity (due to high dissolved solids), high alkalinity, with pH typically ranging between 7 and 8.
2. Waterborne diseases are conditions caused by pathogenic micro-organisms that are transmitted in water. These diseases can be spread while bathing, washing, drinking water, or by eating food exposed to contaminated water.

Water impurities include dissolved and suspended solids. Calcium bicarbonate is a soluble salt. A solution of calcium bicarbonate is clear, because the calcium and bicarbonate are present as atomic sized ions which are not large enough to reflect light. Some soluble minerals impart a color to the solution.

Answer 2

HEY MATE HERE IS YOUR ANSWER.....

1. TRUE.

2.FALSE.

3.TRUE.

4.TRUE.

5.TRUE....

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