In geology, a graded<span> bed is one </span>characterized by<span> a systematic change in grain or clast size from one side of the bed to the other. Most commonly this takes the form of normal grading, with coarser sediments at the base, which grade upward into progressively finer ones.</span>
Geographers use a lot of tools like the compass and the measuring tape. You have to list the tools for me to choose which one is not used by the geographers.
D.) siroccos (dry dusty wind)
