Each value measured in nature has a number value, called its magnitude, and a dimension, or

Magnitude refers to a real number value, like 1, 2, 3 ,4... and so on. While dimension is represented by a symbol or a letter, like "lb" or "m" that serve as a reference of the units. For example, the magnitude can be 50, and its unit "miles or m".

Another examples could be:

Magnitude    Unit

 8                    lbs

10                   tbs

1                     oz

Thus, dimension can also be called unit

the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.