1. Processes through which natural ecosystems sustain human life.

2. Ecosystem Services The ecosystem provides ecosystem services that support life. Substances that are directly used: Food, plants and animals Building materials Fiber and fabric materials Fuel Medicinal plants Oxygen replenishment

3. Ecosystem Services Some of the services are: Providing wildlife habitats Decomposing wastes Controlling erosion and flooding Controlling pests Providing recreation

5. Direct Benefits Hunting, fishing, gathering food Wood for heat and cooking Medicines from plants The Chinese star anise is used in Tamiflu

7. Indirect Benefits Soil formation Erosion and soil control Climate regulation Genetic resources Recreation

8. Renewable vs. Nonrenewable resources Renewable energy sources may be expensive, but it saves money in the long run. Renewable resources are more sustainable while nonrenewable energy gets depleted rapidly. Reducing the use of fossil fuels and energy consumption will benefit the Earth.

9. Renewable vs. Nonrenewable resources Solar power, wind power, geothermal energy, and hydropower are the 4 types of renewable energy sources Fossil fuels such as oils, natural gases and coal are examples of nonrenweable resources.