BUILDING BLOCKS. Overview. Macromolecules form when smaller molecules (building blocks or subunits) come together. Monomers are joined by covalent bonds to form polymers.
The coldest temperature in the Sahara desert is 36 degrees. Well, it depends on where in the desert, but it can reach below freezing. Its colder nearer to the ocean and warmer towards the center of the desert.
Best Time to Visit the Sahara Desert. If you're planning a trip to the Sahara Desert it's best to hop on a camel during the fall or early spring. Temperatures average around 115 Fahrenheit (45 C) during the summer and it's obviously dry as a bone.