This divides our planet into the northern hemisphere and the southern hemisphere.
prime meridan
equator
tropic of cancer
tropic of capricorn

In the diagram below dab and dac are adjacent angles

The vegetation that thrives in the tundra is limited to a. mosses, barley, wheat, and corn. b. coniferous trees. c. dwarf shrubs, mosses, lichen, potatoes, and beans. d. mosses, lichen, algae, and dwarf shrubs.

The ozone hole is at its biggest each year in the ? hemisphere in the ? season.