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.
Travel Tips. The Sahara Desert has the highest recorded temperatures in the world. Related Articles. While historic events such as Europe's Little Ice Age in the 1500s through 1700s greatly affected the Sahara Desert's climate for some time, its climate has been relatively stable for the past 2,000 years.