First turn 18% to a decimal, which is .18, then multiply it by 450.
450 x .18 = 81
Latitudes are always sleeping(horizontal), longitudes are always awake(standing)
Hope I helped
Answer:
Distinction from Tundra Climate
For example, tundra climates usually have a month in which the average temperature rises beyond the freezing point, while this does not occur in polar climates. The hotter month allows the ice in tundra climates to melt, which enable plants and animals to survive.