1. Effects
1.1. Deforestation
1.1.1. Reasons
1.1.1.1. Urban development
1.1.1.2. Crops
1.1.1.3. Growing grassland
1.1.1.4. Wood usage
1.1.1.4.1. fuel
1.1.1.4.2. construction materials and pulp to make paper
1.1.2. Effects
1.1.2.1. Soil Erosion
1.1.2.2. Flooding
1.1.2.3. Desertification: destruction of land leading to desert-like conditions
1.1.2.3.1. Soil is directly exposed to the force of rain, No roots to bind to the soil
1.1.2.3.2. Cause
1.1.2.3.3. Effects
1.1.2.4. Climate changes
1.1.2.4.1. high concentrations of gases in atmosphere
1.1.2.4.2. hydrological cycle
1.2. Over-fishing
1.2.1. Causes
1.2.1.1. increase in demand for fish
1.2.2. Methods
1.2.2.1. Drift nets
1.2.2.2. Trawlers
1.2.2.3. Dredges
1.2.2.4. Cyanide fishing
1.2.3. Effects
1.2.3.1. Fishes being caught more faster than they can be replaced.
1.2.3.2. Marine organisms unintentionally caught often do not survive.
1.3. Young fishes (fries) caught will not be able to have a chance to grow and reproduce.
1.3.1. Populations of organisms will decrease and eventually some species may become endangered or even extinct.
1.4. Pollution: addition of pollutants to the environment that damages it, making it undesirable or unfit for life.
1.4.1. Types
1.4.1.1. Water
1.4.1.1.1. Sewage: water-carried waste matter from homes or industries.
1.4.1.1.2. Inorganic wastes
1.4.1.1.3. Insecticides
2. Industrial
2.1. Manufacturing of goods and services
2.1.1. requires burning fossil fuels for electricity to power the plants
2.1.1.1. causing emission of greenhouse gases
2.1.1.1.1. Carbon dioxide
2.1.1.1.2. Sulfur dioxide
3. Reasons
3.1. For men's usage of natural resources
3.1.1. Renewable
3.1.1.1. Air
3.1.1.2. Water
3.1.1.3. Soil
3.1.1.4. Forests
3.1.1.5. Wildlife
3.1.2. Non-renewable
3.1.2.1. Fossil fuels
3.2. Human beings are continually using and depleting the Earth's natural resources, upsetting the balance of nature and causes lasting damage to the environment.
4. Examples
5. Agriculture
5.1. Contributing farming types
5.1.1. Arable
5.1.2. Pastoral
5.2. Cases of causes
5.2.1. Rice fields
5.2.1.1. usage of tractors
5.2.1.2. rapidly decaying materials
5.2.1.2.1. Dead leaves
5.2.1.2.2. Manure