Washington D.C is the capital of U.S.A and Ottawa is the capital of Canada
Ultramafic,as components of mafic rocks like olivine and pyroxene solidified at very high temperatures, so mafic minerals will decompose as the result of chemical weathering more rapidly than felsic minerals
1. A, 2. Is B or C, 3.C, 4.B, 5.A, 6.C, 7.A- thats all i know
