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.
The Sahara desert is quiet expansive, as such the mean temperature varies quite a bit, coastal areas of the desert being more temperate. In summer the day temperature can â¦ range from 40 to 50 degrees Celsius At night the temperatures can reach 0 degrees Celsius or lower! The mean average temperature (that is to say the average temperature of all the days in the year) is over 30 degrees Celsius.