A. 75% B. 81% C. 73% D. 89% According to H.H. Mitchell, Journal of Biological Chemistry 158, the brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%.
A. Allotrope B. Isomers C. Isomorphs D. Isotopes The term allotrope refers to one or more forms of a chemical element that occur in the same physical state. … Allotropes may display very different chemical and physical properties. For example, graphite and diamond are both allotropes of carbon that occur in the solid state
A. 97 to 104 B. 101 to 115 C. 89 to 103 D. 36 to 43
A. Snow B. Storm C. Intense heat D. Rainfall
A. 6 feet B. 6 meters C. 60 feet D. 100 cm
A. Bitumen B. Bauxite C. Metalloids D. Ores
A. Aerosol B. Ozone C. Acid rain D. PAN
A. Causes skin cancer B. Causes anemia C. Alters body tissue D. is unstable
A. Weight B. Valency C. Size D. Chemical property
A. 4 B. 2 C. 3 D. 5