Chapter 15-The Human Impact on the Environment
| y | r | t | n | e | e | w | g | a | c | o | m | p | o | s | t | e | e | e | r |
| c | t | a | t | i | b | a | h | a | r | d | w | a | t | e | r | r | t | e | c |
| a | o | i | l | l | n | u | c | l | e | a | r | p | h | d | g | g | g | a | g |
| n | n | n | n | o | i | t | a | l | u | g | a | o | c | i | o | a | r | t | o |
| c | e | l | l | i | s | a | c | t | t | o | i | l | a | m | w | b | s | s | a |
| e | o | g | g | e | o | t | h | e | r | m | a | l | s | e | o | n | e | o | e |
| r | s | n | o | i | t | u | l | l | o | p | e | u | s | n | a | i | c | f | s |
| e | g | o | s | r | n | n | o | c | p | l | n | t | r | t | e | i | r | t | d |
| t | c | i | i | e | t | o | r | y | h | o | g | a | a | a | r | c | u | w | h |
| a | c | t | u | c | r | i | i | c | i | n | d | n | l | t | a | o | o | a | e |
| w | g | a | n | a | u | v | n | t | c | i | b | t | c | i | t | a | s | t | d |
| o | n | r | p | e | l | b | a | d | a | r | g | e | d | o | i | b | e | e | e |
| a | i | t | e | m | m | n | t | t | t | c | l | c | a | n | o | r | r | r | n |
| a | l | l | r | w | i | n | i | i | i | e | i | w | h | b | n | e | d | i | n |
| i | c | i | s | l | o | o | o | i | o | o | o | f | i | e | g | t | o | t | a |
| m | y | f | a | r | n | p | n | r | n | e | n | n | i | n | m | t | i | i | t |
| e | c | s | e | f | i | l | d | l | i | w | n | i | a | r | d | i | c | a | u |
| b | e | n | e | r | g | y | n | a | a | v | n | d | i | m | u | l | c | n | r |
| d | r | e | l | o | h | e | n | o | z | o | n | a | l | t | u | p | e | a | a |
| a | n | n | e | g | a | r | b | a | g | e | c | e | e | r | o | h | o | d | l |
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| acidrain | environment | ozonehole | | aeration | eutrophication | pollutant | | air | filtration | pollution | | biodegradable | garbage | power | | carbon | gas | purification | | cell | geothermal | radiation | | chemical | habitat | recycling | | chlorination | hardwater | resources | | coagulation | human | sedimentation | | coal | hydroelectric | sewage | | compost | impact | smog | | conservation | litter | softwater | | cycle | natural | solar | | desalination | nitrogen | water | | endangered | nuclear | wildlife | | energy | oil | wind |
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Some of the puzzles that people list for the public
get indexed by the search engines
(like Google).
Some people find those puzzles and cannot figure out how to make a puzzle
of their own. So this page now has the navigation sidebar.
There are now buttons on the puzzle so that you can get a clean page,
in either HTML or PDF, that you can use your browser's print button
to print. The PDF format allows the web site to know how large a
printer page is, and the fonts are scaled to fill the page.
The PDF takes awhile to generate. Don't panic!
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