1. Do Now: Take out RRWS #7 (Biotechnology)
Date: June 1, 2016
Aim #95: How can technology be used to help the environment?
HW:
1) RRWS #8- Evolution
Next Regents Review Session: Tuesday 3:15PM
Quarter 4 Test Friday 6/3 (p.5) and Monday 6/6 (p.1 & p.7)
LIVING ENVIRONMENT REGENTS EXAM
WEDNESDAY, JUNE 15TH !!!
Do Now: Take out RRWS #7 (Biotechnology)

2. Aim #95: How can technology be used to help the environment?

3. 1a) Alternative Energy Sources:
Hydroelectricity – dammed water is
sent through a turbine & generates
electricity.
Advantages:
Little or no air pollution
Does not depend on fossil fuels
Disadvantages:
Disruptive to surrounding aquatic
ecosystems.

4. 1b) Alternative Energy Sources:
Wind Power – wind spins
turbine blades to produce
electricity.
Advantages:
Little or no pollution
Does not require the
consumption of water to
operate.
Disadvantages:
The intermittency of wind
Need a lot of turbines to generate as much energy
of one fossil fuel power plant.

5. 1c) Alternative Energy Sources:
Solar Energy – the use of the sun’s
energy to generate electricity.
Advantages:
Relatively pollution free.
Technology is becoming more
affordable.
Disadvantages:
Not available at night & reduced during cloud cover.
Photoelectric Cell

6. 1d) Alternative Energy Sources:
Nuclear Energy – energy
produced from the splitting of
atoms.
Advantages:
Water vapor is the only
emission.
2) Low fuel costs (uranium)
Disadvantages:
Waste is radioactive & must be properly contained
for thousands of years.
2) High maintenance costs.

7. 2) Energy Conservation:
We need to conserve energy by reducing our
usage of everyday products we have come to
rely on.
Ex: Turn off lights when not in use, Carpooling,
Use fan instead of air conditioner, etc…

8. 3) Individual Choices & Societal Actions:
Solutions to these environmental problems require an
analysis of costs & benefits.
Example: You can only drive your
car to work.
Benefits:
1) Less pollution
2) Conserve natural
resources
3) People may exercise
more
Costs:
Inconvenience
Loss of jobs in oil industry
Lose contact with friends
We must determine which trade-off (compromise) is
acceptable.