Jasper County
Clarke County is a county in Iowa. Clark Bar is a milk chocolate peanut butter candy bar.
Grundy is a county in Iowa
There are no county names in Iowa or anywhere else in the U.S. that start with X.
Greene
DeSoto is a county in Florida. DeKalb is the name of a county in Alabama, Georgia, Illinois and Tennessee. Davis is the name of a county in Iowa and Utah.
Howard County is the name of a county in Arkansas, Indiana, Iowa, Maryland, Missouri, Nebraska and Texas. Hamilton is the capital city in Bermuda.
Hamilton County is the name of a county in Florida, Illinois, Indiana, Iowa, Kansas, Nebraska, New York, Ohio, Tennessee and Texas.
Iowa got it's name from the Iowa tribe of Indians.
An impure substance can be called a mixture. It could be either heterogeneous mixture or homogeneous mixture.
I'm not sure you can find the county with those letters. There are only 6 counties starting with M... * Madison * Mahaska * Marion * Marshall * Mills * Muscatine The county name should be on the bottom of the plate. Here is a history of Iowa license plates since 1969: http://www.15q.net/ia.html
In the United States, there are Eleven (11) counties by the name of POLK. They are: POLK COUNTY, ARKANSAS POLK COUNTY, FLORIDA POLK COUNTY, GEORGIA POLK COUNTY, IOWA POLK COUNTY, MINNESOTA POLK COUNTY, NEBRASKA POLK COUNTY, OREGON POLK COUNTY, TENNESSEE POLK COUNTY, TEXAS POLK COUNTY, WISCONSIN POLK COUNTY, NORTH CAROLINA
The scientific name for quartz crystal is silicon dioxide (SiO2).