Find the perimeter of the figure. HH
12 ft
+
20 ft
The perimeter of the figure is
(Simplify your answer.)
feet.

Identify what happens to light in this model of the greenhouse effect

Which of the timelines above accurately represents the order of historical events in canadian history? a. one (1) b. two (2) c. three (3) d. four (4)

Match the mountains with the type of collision that formed them. a. andes b. aleutians c. north american cordillera d. appalachians 1. continental- continental 2. continental- oceanic 3. oceanic- oceanic 4. arc- continent