Describing Regional Climates Practice Test

About the Sahara Desert: Source 1 temperature data (very hot days, cool nights), Source 2 precipitation records (under 3 inches a year), Source 3 satellite notes (few clouds, little vegetation). Using all sources, what is the climate like?

Arctic climate notes: Source 1 (research logs) show winter −40 to −20°F and summer 32–45°F. Source 2 (precipitation) shows only 6–10 inches per year, all snow. Source 3 (journals) describe 24-hour darkness in winter and 24-hour daylight in summer. Using information from all sources, what is a complete description of the Arctic climate?