1. Renewable & Nonrenewable Resources
3/21/18
Ms. Harper
Biology

2. March 22, 2018 Begin working on Do Now
You will receive your quiz grades back at the end of class.

3. Do Now 1/11/16 1. How do you think you did on your quiz Friday?
2. What are some things you can do to improve/maintain this grade for next time?
3. What is the difference between biotic and abiotic factors?
4. Give an example of both abiotic and biotic factors.
5. What is carrying capacity?
6. Name at least three limiting factors in the environment.
7. Explain the difference between density- dependent and density-independent limiting factors.

4. Human Impact & Natural Resources
UNIT 5

5. Humans Change the Environment
Humans are a major part of every ecosystem in which they live.
The human population like other organisms can continue to grow until it reaches its carrying capacity.
This may have increasingly harmful effects on ecosystems, but we can do something to minimize this damage.

6. Natural Resource
A natural resource is a product of the environment that is used by humans or other organisms.
Can you think of any examples of natural resources? Write down at least two.

7. Renewable Resource
A renewable resource is a resource that can be replaced through natural processes.
Possible Characteristics
Can regrow
Can be reused
Replaced fairly quickly

8. Examples of Renewable Resources
Air/Wind
Soil
Water
Trees
Sunlight

9. Nonrenewable Resource
A nonrenewable resource CANNOT be replaced by natural processes at least not as fast as they are used.
May never be reused or
May take millions of years
to reform
Includes all fossil fuels

10. Examples of Nonrenewable Resources
Coal
Oil
Natural Gas
Metals (copper, iron)
Marble

11. Commonalities Between Renewable and Nonrenewable Resources
Both are resources
Both come from the environment
Both support human life and other living things

12. COMPARE & CONTRAST

13. Human Activities & the Environment
Biology
Mrs. Harper
3/22/18

14. Do Now 1/12/16 What is a natural resource?
What is a renewable resource?
What are some examples of renewable resources?
What is a non-renewable resource?
What are some examples of nonrenewable resources?
What are some traits renewable and nonrenewable resources have in common?

15. Conservation & Sustainable Development
Conservation- the wise use of natural resources
Examples: recycling, reducing resource use
Sustainable development- using enough resources to meet needs without destroying or depleting resources for future generations

16. Desertification
Desertification- changes productive, fertile land into a desert
Caused by misuse of land in dry ecosystems through overplanting and overgrazing
Negative effects: fewer species can live there, lack of nutrients, possible erosion
Positive effect: can be reversed, soil can be replenished

17. Desertification

18. Deforestation Deforestation- clearing of forests by humans
Forests moderate temperature, help create balance between oxygen and carbon dioxide
Negative effects: destruction of habitats, decreased soil fertility, less oxygen
Positive effects: can be reversed through planting seedlings, wood used for construction, furniture and paper

19. Deforestation

20. Overfishing
Overfishing- harvesting (collecting) fish faster than the population can renew its numbers
There are laws that place limits on the number of fish that are caught
Negative effects: disrupts food chain, possible extinction of species
Positive effects: provides abundant food for humans

21. Overfishing
Overfishing- harvesting (collecting) fish faster than the population can renew its numbers
There are laws that place limits on the number of fish that are caught
Negative effects: disrupts food chain, possible extinction of species
Positive effects: provides abundant food for humans

22. Overfishing

23. Pollution- Burning Fossil Fuels
Pollutants are released through the burning of fossil fuels in power plants, factories and vehicles.
This increases atmospheric carbon dioxide which causes temperatures to rise all over the world (Global Warming)
Causing glaciers to melt and eventually polar ice caps
Sea levels will rise and coastal cities may be found underwater

24. Global Warming

25. Pollution- Acid Rain
Coal burning releases nitrates and sulfates into the atmosphere
These chemicals mix with water vapor to produce acid rain
Acid rain can injure or kill trees, plants, fish and insects

26. Pollution- CFCs
Chemicals called CFCs found in aerosol cans, refrigerators and air conditioners damage the ozone layer when released into the air
Ozone layer is important because it partly blocks UV radiation from the sun.

27. Water Pollution
Run-off from paved areas carries oils, gasoline, pesticides, fertilizers and sediment which pollutes our clean water supply.
Industrial waste and human sewage also pollute freshwater
We must not use any more water than is necessary to protect the supply for future generations

28. Video (if time) https://www.youtube.com/watch?v=pZ9jsQa dfoU
At the bottom of your notes, list some harmful human activities that you observe in the video.
We will discuss these as a class.