Randomized Controlled Studies: This is a study in which 1) There are two groups, one treatment group and one control group. The treatment group receives the treatment under investigation, and the control group receives either no treatment (placebo) or standard treatment. 2) Patients are randomly assigned to all groups.
winds that blow in a steady direction can move a dune. such wind will consistently pick up sand from one side and deposit it to a other side. this causes the entire dune to s â¦ lowly move in the direction if the wind.
The part of a wave in shallow water slows down, causing the wave to bend and line up nearly parallel to the shore. Most of the year, and most of the time, the movement of sediment and water (longshore current) along the California coast is from __________. north to south. A strip of land that extends inland from the coastline as far as marine influence is evidenced in land forms.