1. Environmental Science II Review Ms. Hughes’s Class

2. Environmental Science II  What drives the water cycle?  Solar radiation from the sun  In the space provided draw a picture of the water cycle and label the sun, condensation, precipitation and evaporation.

3. Environmental Science II

4.  Based on the chart below which area of the world would have the greatest water stress?  Asia

5. Environmental Science II  Name at least six renewable resources.  Timber  Soil  Water  Wild animals  Solar  Wind  Geothermal

6. Environmental Science II  Phoenix has replaced desert with concrete and asphalt, how has that affected temperature over the past 50 years?  Night time low temperatures have increased by 10ºF

7. Environmental Science II  What is the leading cause for the increase in CO2 in the atmosphere?  Increasing consumption of fossil fuel

8. Environmental Science II  The fluctuations in the graph represent increases and decreases in photosynthesis during different seasons in the northern hemisphere.

9. Environmental Science II  What happens to the energy from the sun that reaches the earth?  It is trapped by the earth’s atmosphere; if the earth did not have an atmosphere the energy would be reflected back into space.

10. Environmental Science II  Name some of the threats posed by climate change?  Rising sea levels threaten people who live by coastal areas  How can individuals reduce emissions from cars?  Use public transportation

11. Environmental Science II  What can be done to reduce climate change?  Plant trees that take in carbon dioxide during photosynthesis  What makes up the greenhouse gasses that trap heat near the earth?  Water vapor and carbon dioxide

12. Environmental Science II  How do scientists use proxy indicators?  Scientist use proxy indicator such as ice cores to learn what climates were like in the past

13. Environmental Science II  What is the source of most air pollution?  Combustion of fossil fuels  Name a United States regulation that sets limits on specific air pollution.  The Clean Air Act

14. Environmental Science II  How has the climate changed since the Jurassic period?  During the Jurassic period there was a great deal of volcanic activity causing higher levels of CO2 in the atmosphere

15. Environmental Science II  What is the difference between weather and climate?  Weather is the atmospheric condition at a specific point in time, climate is the atmospheric condition over a long period of time.

16. Environmental Science II  How is most of the electricity used in the United States generated?  Combustion of fossil fuels  Who uses more energy developed nations or under-developed nations?  Developed nations

17. Environmental Science II  Why is the use of natural gas growing faster than other forms of fossil fuels?  It creates less air pollution  How is most oil used in the United States?  Transportation  How can fossil fuels be used directly?  A gas stove

18. Environmental Science II  What is the greatest limitation to some forms of renewable energy?  Geothermal energy is geographically limited  What is the major disadvantage of nuclear energy?  How to dispose of radioactive waste

19. Environmental Science II  How is biomass used as an energy source?  Burning wood in a fireplace for heat

20. Environmental Science II  How are fossil fuels formed?  Fossil fuels are formed in nature from the remains of ancient organisms, but it takes millions of years so they are considered nonrenewable

21. Environmental Science II  Name an example of solar energy use.  Passive solar energy can be used to heat homes and buildings and photo voltaic cells can be used to generate power to homes

22. Environmental Science II  Are there limitations to renewable energy sources? If so what are they?  Geographic limitations  How does the development of an oil field affect ecosystems?  Pollutes air and streams

23. Environmental Science II  What are the advantages of renewable energy sources?  They do not produce greenhouse gasses  How can waste from food scraps be reduced?  Composting

24. Environmental Science II  Where does most waste end up?  In landfills  How do landfills impact the environment?  The majority of our waste ends up in disposal sites that take up large amounts of land and contribute to both air and water pollution

25. Environmental Science II  How can the negative impact of hazardous waste be reduced?  Reduce the amount of hazardous waste produced  What are the benefits of waste reduction?  The economic benefits include lower cost associated with waste disposal  How can we reduce the amount of plastic that ends up in landfills?  By using reusable water bottles, recycling water bottles and drinking from fountains

26. Environmental Science II  Name a hazardous waste and describe how it affects the environment.  Hazardous waste such as electronic devices can leach heavy metals into groundwater  E-waste

27. Environmental Science II  What does an ecological footprint measure?  The environmental impact of an individual in terms of the total amount of land and water required to provide the raw materials and products needed and the disposal of the resulting waste.

28. Environmental Science II  What can you do to lower your ecological footprint?  Eat less meat and eat more vegetables  What is sustainable living?  Adjusting your lifestyle in an attempt to reduce the use of nonrenewable resources

29. Environmental Science II  What is sustainable living?  Adjusting you lifestyle in an attempt to reduce the use of nonrenewable resources