9508 The ocean bottom – a region

DBBDC BACDC BACDA DABAB DADAC DCABD ADCDB BDDAB BDBAD DABCD

9510 Atmospheric pressure can support a column of water
CCBBA DCADA BDCDD AABDB CCDAD BDBAA DCCCD BAABB DABCC DBCAB

9512 Another early Native American tribe
BABAD BADAB BCBCD BBADC DCBCD BDADD CCBDD AAADB CDADB BDBCD

9601 Joyce Carol Oates published her first
DBCCD CABAB DCCAC ABBCA BCADC DADCC BDBAA AADDB BBADB CBDDA
9601NA In science, a theory is a reasonable explanation
ABBDC BCCDB BACCD BCDAB BABDD CBACA CBDAA DABCD BCAAB DCADD

9605 Orchids are unique in having the most
CBADD CAAAD CBCBC ACABD BADAB ACBCD BDACD CADBA CBDCB CCADA

9608 The word laser was coined as an acronym
ACBAB CCDDB DBBBC ACDAB CCABD DCABC ADBBA BABCA CBACD AACDC

9610 When Jules Verne wrote Journey to the Center
CCACC BCDCC AACDC BDABB DACAD DBBCA AADDC CDBAB AACBB AABDC

9612NA It is commonly believed that in the United
BDCAD ADCBA DBBDD BBACC DADBC DACBD BCCCD BAABA CCBAC DDDAD

9701 Both the number and the percentage
ABBDB BACBD DAACC CACCB DCAAB ABDBB CCAAA DBDDB DCDDB CBBBC

9705 With Robert Laurent and William Zorach
ACBAD DBBDA DCCCB BDBBC BBCBB CADDA AABAB DBACA ABABD BBDBD

9708 In the 1600’s when the Spanish
CDCDB BAACB DDBAA DCDAB DADAC CDACD DABBD DBCDB AABCD ADDAA

9710 Hotels were among the earliest facilities
CDCBC DACBC DDDCC ABBAC DCCAD ABACD BABBC CAABB BBABC AACCD

9712 Before the mid-1860’s, the impact of the railroads
BDADC DACBC CBACD ACDBA DBCAD DBACB CCDDB BDACA BACDA BACCD

9801 Although social changes in the United States
BCCAB CCABB AADCC ACBDA ACDBB BCABC BDCCA DBBCA BDADC ADBAA

9805 Before the 1500’s, the western plains of North America
ACBDC CBBDD ACACA CBDBD BDDCC DACAA DCBBD ABDAA DACCB BDDBA

9808 A seventeenth-century theory of burning
BDDCC ABABD DCDCB CABAB DAAAC BBCAA DBDCD CBBBA ACBBC DCDAD

9808NA The conservatism of the early English colonists
DCACD ADCBB CBCAC ADDCD BBDDA BAADC BCAAD DCDBA DABCD ACBDD

9810 The geology of the Earth’s surface
AACCD CABDC DACBA ACCBC DBBDA BDDAC BDBAD ACBDC BDDAB CCACD

9901 The Native Americans of northern California
ADCBB CBDAD CAAAC ACCAD BBDBA ACADC DACAD ADCAB DBBCB BCAAD

9905 The term “Hudson River school”
BBDBD CACAD CABCD ABACD BABCB BCADA BAADC ADBCD BBABC BBCAD

9908 Perhaps the most obvious way artistic
DACCB DBBAD DABDC CDCBD ABCAB BBDDA BCACA BCABC DBABC ADADD

9910 Potash (the old name for potassium carbonate)
DBDBC ACABD DBBCA DCDCD AADDB CDACB ABADC CBACB DCACB DBABC

0001 As Philadelphia grew from a small town
BCDCD CBABB DAACA DCBCD CADAD BCBBD BADBB ADABB CCDDC BADAC

0005 The canopy, the upper level of the trees
DDCCB CADAB BBDBC CCDAB CBBAA BCBAB DBDBD AAADB DCBAD CCADD

0008 Prehistoric mammoths have been preserved
CBDBD BBABB DDCDC BCACA CBDCA BDBCD AACBC ABBDB CCBAD BCBDB

0010 One area of pale anthropological study
ACDCA BCDBA BCACD DCBAC DABCC CBCBB DDCCA BADCB DCCAC BBCAD

0101 In 1972, a century after the first national park
BCADB DADDB CADDD CADBC ADCDB DABDA BCDAC BDDAB CBBAA DCACC

0105 In the early 1800’s, over 80 percent
AABDA ACDBD CABDC ABCBD BACAD DCACA CBADD CCABD CBDAC DCDCC

0108 Glass fibers have a long history.
ACBDA ADBDC BDCBA BDCBC ABCBC BDACA ADCBC BDDCC AACBD BBCAD

0110 Composers today use a wider variety
ADCBB DACDD CABCA ACADC BDABA ADBDC CAAAB DDDBD BCABC BBCAD

0201 In 1903, the members of the governing board
ABCCB CABDB BADBD ACCBA DABCC CDCCC BADCC DCCBD BCCCA DBAAD

0205 The term “folk song” has been current
BDBCC ACAAC ABCDA AABDB BACCD BBBCB BDCCC ADBDA CBCDA ABACC

0208 Often enough the craft worker’s place
ABCCC DDAAB DACBD ADCDB CDCDA ADABC ABBDB DCABD BCDAD CCCDC

0209 Hunting is at best a precarious way of procuring food
BABDB CDADC DAADC CDADB CBDDA DDCCB DADBD ABBCD DCCBC ABBAC

0210 The first birds appeared during late Jurassic times
ACBBA ACDBB ABBDA DDBBB CBDCA ABDBC CADAD ACBDC DCBDB CBACC

0301 By far the most important United States export
DACDB DACCA BCDCC ADADB CADBA DABAA ACADB CACCB AACDD BCDAC

0308 If food is allowed to stand for some time
DAABA DDBAB CDBCB DCBBA BDACB DDBAA DDABC DCBBA DCDBC CADCB

0310 Europa is the smallest of planet Jupiter
CDACD BDABC DBADB DCACB DAACA DBCBD CDDBD BCBAB AACCB CCDDB

0401 After 1785, the production of children’s books
BDABC DBDCB DDADD CBBBC BADBD CABDC CDABC ADBBA BABCD BDABA
0405 All mammals feed their young.

ACDDA ABCDB CACBC ABBDA DCBAB CCACD BBDCC AADBC AAAAD BCBCC

0408 People living today in the northwestern state

BCAAD DCBBD DAADC DADCC CBDCA BDBDC CBDAB ABCDDABCCD

0410 The French word renaissance means rebirth.

CDDBB CBCDC DCCBC DAADC DCCBA ACDCB DBDAD BDDCB BCADD AACBB

0501 Color in textiles is produced by dyeing

ACAAC CDAAA BDCAC ADDBD CBACA CADDA BCDAA CBBDA DBABD CDCCB

0505 With the onset of the Industrial Revolution

ADCBD DDCDD BDCDA ACCAB DCBDB CADDB ACCBA ABDDD BCDAB CCBDC

0508 Unlike those available for painting

CBACX BADCA BBCDB ADBAB ABACD DABCC DBBAC DACBA CABCD DCDBB

Algae is a primitive form of life

BADBC BBDCA BCCAB BDBBA BBCBA BABDD DACBD ABDCB BCBBC DABDC

Aspirin’s origins go back at least

ADBCC DCBCD BDDAA BCDBA BDCBC CAABD ACBAD CBDAB BCAAD BCBCA

John James Audubon, nineteenth-century artist

BBDAC CABDB CADCA BDDDA CACDB ACCDB BCADB DCAAC ACBAC DCABD

Niagara Falls, one of the most famous

DBCBD ACDAB ADCBA CACDC CDCBD BAACB DBCDA ABDBC DCBBA DCABD

The final battle of the War of 1812

DAAAC BBDCD ADCCA BDBCB ABDAC DBDAC BACAC CBDDD AABAD BCADD

A rather surprising geographical feature

DBCAD ACBBC DCDBB BDAAB DADAD DACBC BCBDC CBADB CBDAC CBDAC

Harvard University, today recognized as part of the top

BDABC ACADD CCDAB CCACD BDCCA CCADC ABCDC BAADD BACDB DDBDA

The Americans with Disabilities Act

BCADB ACDDB ACCBD CDAAC DDABC DABAC BACBA DCDAC CBADD CABDD

On March 25, 1911, one of the five hundred

DBCAC BACDB BCABD BCDAA BCDCA BCCDA BDACB DBCAA BDCBD DBACD

Tides are a natural phenomenon

ACBBC DCABC DADBC CACDB DACAD CBDBC BBADB BCDDA BADCC ACBBC

If we believe that clothing has to do with covering the body

CBDAD BDCCA DCCAB CDABA DCCBA DBDCA CBDAA BCDAC DABCD CDABB

Charles Lindbergh was born in Detroit

BACDC CAADB CCBBC DCABC BACCC CADCB ACBAB BDCCA BBDCA CACAB

The Globe Theater, where most of Shakespeare

CBBCD ADBCB ABBCA CDBAA ADDDC CDCBD BCACA BBBAB CDCAA BCCCD

Even with his diverse experience as an elected

BCCAC CBBCD BBBAC BCBBC BCDBD CADDD CBCCB CBCDC DBCBB CCBDA

During the Middle Ages, societies were based

DCADA BADDB DBADB DBBBC BBCAA ABDBB DBCCD DACDC CBCCA DCCBB

The Mayo Clinic in Rochester

CADCB BBCCC DBCBB BDCCB CDAAA DDDCB CCBCD DCBBC ABBBC CCCAC

Free-standing sculpture that is molded or carved

BBCDD BBDCA ADACB ADCBC ACBAD BCDAB BCACD CBABA DBACB ACABD

In the course of history, human inventions

CACBC BCDDA ACBDB CDBAC ABDCB CCBBA CCBDA AACBC ABBBC CDABB

Architecture has social purposes and meets

CBABB ABADC BDBCA BCDCA BDABC BDCBA DBCDA CDBCC ACDAD BCADD

The hippopotamus is the third largest CDAAB CDBAD BBDAC CABDB CDAAB DADAD BACDA DCBDD BBCAD BDCAC

A distinctively American architecture ADBDC DABCC BBAAB DDADA CBBDB CCABD BABCA ABACD BCDAC BBDAD

Precipitation, commonly referred to as rainfall

ACBAB CDBAB BAABA CCABC DCDAA DDCAD DDDDB BCACC ACBCC ABBBD