The term water pollution can be defined ...

The term water pollution can be defined in several ways. Which of the following statements does not give the correct definition?

The addition of undesirable substances to water bodies.

The removal of desirable substances from water bodies.

A change in pressure of the water bodies.

A change in temperature of the water bodies.

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The correct Answer is:

The removal of desirable substances from water bodies.

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Which of the following statement is definitely true ?

In a rhombus, the diagonals are equal.

In an isosceles trapezium, the diagonals bisect each other.

In a kite, the diagonals are perpendicular to each other.

In a trapezium on pair of opposite sides are parallel to each other.

In a rhombus, the diagonals are equal

In an isosceles trapezium , the diagonals bisect each other

In a kite, the diagonals are perpendicular to each other

In a trapezium on pair of opposite sides are paraller to each other

(a) Bolling point of water Is 100'C at very specific pressure

(b) Freezing point of water is 0°c at any pressure

(d) Water Is made up of hydrogen, oxygen and helium