An air mass that forms over northern Canada will be what? A. Cold and Humid.
B. Cold and dry.
C. Warm and Humid.
D. Warm and Dry.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

answer; capital earns interest; entrepreneurship receives a profit or incurs a loss;