By: Ember

Ember — Fri, 05 Mar 2010 22:48:59 +0000

You should try answering some of these yourself first because once you read the questions they’re really not that hard. I answered what I could..

4. igneous and metamorphic
5. limestone (i think)
6. necessary equipment and installation are expensive
8. falling water that turns a turbine
15. create less air pollution
17. uranium
18. acid rain
20.they are all renewable
21. point source pollution is when the pollutants pollute at the site where they were released; non-point source pollution is when it pollutes at a different site (eg: when air pollution from one place spreads to another)
22. if less energy is used, less coal and other polluting energy sources are burned to create CO2, CO etc.
References :

By: Jesse

Jesse — Fri, 05 Mar 2010 17:46:05 +0000

earth science help pleaseeee?
4. Most metallic ores are produced by which two types of processes? (1 point)
cementation and compaction
igneous and metamorphic
igneous and sedimentary
metamorphic and sedimentary
5. Which of the following nonmetallic mineral resources is used both as a building material and as an industrial mineral? (1 point)
sulfur
limestone
graphite
corundum
6. What is one of the drawbacks to the extensive use of solar energy? (1 point)
It is nonrenewable.
Necessary equipment and installation are expensive.
It is available only at night.
Its use produces pollution.
7. How does nuclear fission produce energy? (1 point)
Moving water turns turbines to produce electricity.
A controlled nuclear chain reaction produces heat, driving steam turbines to produce energy.
An uncontrolled nuclear reaction produces heat, driving steam turbines to produce energy.
Carbon atoms are bombarded by neutrons.
8. Hydroelectric power is produced by ____. (1 point)
falling water that turns a turbine
tides that pour through a dam barrier
hot water that comes from deep underground
electric current that flows across a dam

12. Which of the following is NOT a land resource? (1 point)
soil
forests
iron
wind
13. In which decade were the first important laws passed to decrease water pollution? (1 point)
1950s
1960s
1970s
1980s
14. The Clean Water Act ____. (1 point)
required pollution control devices on cars and power plants
established National Ambient Air Quality Standards
set maximum contaminant levels for pollutants in drinking water
required industries to reduce or eliminate point source pollution in surface waters
15. Cars with hybrid and electric motors ____. (1 point)
use more fuel than conventional cars
create less air pollution than conventional cars
use solar panels for power
are no longer produced
16. What is the most important law passed to deal with air pollution? (1 point)
Clean Water Act
Resource Conservation and Recovery Act
Clean Air Act
Comprehensive Environmental Response, Compensation, and Liability Act
Note: your teacher will review your responses to questions 17–19 to ensure you receive proper credit for your answers.

17. (1 point)
The element is used in nuclear fission to produce energy.
18. (1 point)
Power plants release sulfur dioxide and nitrogen oxides into the atmosphere, where they combine with water vapor to form .
19. (1 point)
Forest habitat and soil are conserved through , in which only some trees in an area of forest are cut.
Note: your teacher will grade your responses to questions 20–22 to ensure you receive proper credit for your answers.
20. Identify solar, wind, nuclear, and tidal power as nonrenewable or renewable energy resources. Explain your answers. (4 points)

21. Contrast point source pollution and nonpoint source pollution. (2 points)

22. How could energy conservation help to control or decrease air, water, and land pollution?

Comments on: How to Build a Solar Panel – Earth for Energy DIY Solar Kit Review

By: Ember

By: Jesse