Physical properties can be used to classify and compare substances . The illustration below shows a physical property that is being investigated using different materials placed in 95 °C water.

What part did glaciers play in forming the great lakes?

Which of the following regions suffers the most from acid rain? a. the area around vancouver c. the area below atlanta b. the area below detroit d. the area above montreal

Agriculture is a. slowly being replaced by mining as the primary industry in southern africa c. not possible in southern africa because of drought b. the primary industry in southern africa d. none of the above