CHAPTER 2: Impacts of Human Activities on the Natural Environment

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CHAPTER 2: Impacts of Human Activities on the Natural Environment by Mind Map: CHAPTER 2: Impacts of Human Activities on the Natural Environment

1. Underwater noise

2. Measurement noise

2.1. 20db (super low)

2.2. 40db (low)

2.3. 60db (normal)

2.4. 80db (painful)

3. AIR POLLUTION

3.1. Chemicals, biological materials

3.2. IMPACTS

3.2.1. 1) Greenhouse Effects

3.2.1.1. - Global warming

3.2.1.1.1. Effects:

3.2.1.2. Climate change

3.2.1.2.1. Effects:

3.2.2. 2) Visibility Reduction

3.2.3. 3) Acid Rain

3.2.3.1. Impacts:

3.2.3.1.1. Environment

3.2.3.1.2. Human health

4. NOISE POLLUTION

4.1. Unwanted, unpleasant sound

4.2. Environmental noise

4.2.1. Air craft noise

4.2.2. Roadway noise

4.3. Occupational noise

4.3.1. Machinery noise

4.3.2. 85db for 8 hours

4.4. Effects:

4.4.1. Lack of concentration

4.4.2. Mental illness

4.4.3. Hearing impairment

4.4.4. Heart attack

4.4.5. Speech interference

4.4.6. On animal & property

5. WATER POLLUTION

5.1. Contamination of water bodies

5.2. Types:

5.2.1. Surface

5.2.2. Groundwater

5.2.3. Microbiological

5.2.4. Chemical

5.2.5. Nutrients

5.2.6. Oxygen depleting

5.3. Categories:

5.3.1. Point source pollution

5.3.1.1. Contamination enter waterway

5.3.2. Non-point source pollution

5.3.2.1. From large area

5.3.3. Groundwater pollution

5.3.3.1. Contamination groundwater

5.4. Causes:

5.4.1. Chemicals

5.4.2. Pathogens

5.4.3. Macroscopic pollution

5.4.4. Thermal pollution

5.5. Impacts:

5.5.1. Disease

5.5.2. Blockage drains

5.5.3. Affects biodiversity

5.5.4. Oxygen depletion

5.5.5. corrosion potential of water

5.5.6. Suspended particles

6. SOIL POLLUTION

6.1. Build up in soils of toxic compounds

6.2. Types of soil contamination:

6.2.1. Oil & fuel dumping

6.2.2. Pesticides

6.2.3. Wastes from landfill

6.2.4. Discharge from industrial

6.3. Impacts:

6.3.1. Radical chemistry changes

6.3.2. Economic loses

6.3.3. Disruption of food chain

6.3.4. Reduce crop yields