Polychaeta generally refers to a class of annelid worms with segmented body parts.
Even though all of the answers are annelid worms, polychaetes are generally marine animals, so I would say that the answer is most likely Clam Worms.
Answer: ''Dust from the hot Saharan Desert of northern Africa has a connection to a much different climate in South America, according to a study by NASA scientists. Using satellite data, the study has found that the dust is acting as fertilizer for South America's Amazon rainforest about 1,600 miles away to the west over the Atlantic Ocean.''
Explanation:
Geologic time: <span>The </span>geologic time<span> scale (GTS) is a system of chronological dating that relates </span>geological<span> strata (stratigraphy) to </span>time<span>. It is used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships of events that have occurred during Earth's history.
Hope this helps :)))</span>
erosion because it is mostly done nature itself.through wind water and ice