Dune formation will take place when sand, high winds, and vegetation are present.
Answer:
War
Explanation:
The reasons people migrate are usually economic, political, cultural, or environmental.
<span>The absolute threshold is the lowest intensity required and the difference threshold is the just noticeable difference between two stimuli. These thresholds differ by person, but usually have are defined as being able to be detected fifty percent of the time.</span>
Answer:
Scientific discoveries challenged long-held ideas. The discovery of penicillin lead to development of antibiodics to treat infection.
Explanation:
<span>These errors were due to poor memory development and an immature memory. Children at this age do not have the memory skills developed to be able to recall objects, if they were removed or otherwise obscured from view, and found these objects to be novel when they reappeared.</span>
