Answer:
Ecosystem engineers are species that modify their environment in a significant manner, creating new habitats or modifying existing ones to suit their needs.
All fatty acids have the same proportion of hydrogen
The earth's crust varies in many places. in some areas, there are different variations of high elevation (such as ocean trenches), and low elevation (such as volcanoes ie. hawaii)
the process by which sediment<span> is removed from its source deposition.</span><span>
</span>