Question

Fill in the blank to complete each statement.

Answer 1

1. Watershed

2. point

3. nonpoint

Answer 2

Answer:

a) The land which supplies water to a "river system" is called a watershed.

b) Pollution from a single, identifiable source is called point source pollution.

c) Pollution which is very difficult to link to a particular origin is called non-point source pollution.

Explanation:

• A watershed serves as a feeder to the rivers in a particular river system.

• When a certain type of pollution has a single point of origin, it is called 'point' source pollution.

• When a certain type of pollution "cannot be traced back" to a single origin and is recognized to have multiple sources, it is known as 'non-point' source pollution.