Ways Human Induced Changes In Physical Environment In One Place Can Cause Changes In Other Places

Question 1

T/F

Untreated sewage, animal waste, and fertilizer runoff are ways that pollution enter our water system.

Answer 1

True

Question 2

What is water pollution? Provide examples.

Answer 2

Occurs when conditions exceed the watershed’s ability to filter out / cleanse. May be discolored or show no signs of pollution.

Ex) direct discharge into water (point source) or indirect discharge into water (non point source)

Question 3

How can you reduce non-point source pollution?

Answer 3

1. Use earth friendly fertilizer
2. Only use fertilizer when you need it
3. No fertilizer on driveway or sidewalks
4. No fertilizing when raining
5. Pick up all animal waste

Question 5

T/F

Pollution does not enter water systems both above ground and underground

Answer 5

False

Question 6

T/F

We are working toward ways to reduce water pollution.

Answer 6

True

Question 8

What is point-source pollution? Provide an example.

Answer 8

Harmful substances are emitted directly into the environment. Discharges occur at a single location.

Ex) a pipe from factory discharging waste directly into a river
OR
Urban runoff from a chemical factory

Question 11

What is non point source pollution? Provide example.

Answer 11

Pollution affecting the environment from diffuse sources, such as polluted runoff from agriculture area draining into a river.

Ex) fertilizer from a farm field is carried into a stream by rain
OR wind-borne debris blowing out to sea