Calcium carbonates are incorporated into the shells of microscopic marine plants and animals, and then precipitated into the ocean sediments.

This process is which of the following?

evaporite deposition

chemical precipitation

biological precipitation

sediment deposition

Now consider the reaction when 45.0 g naoh have been added. what amount of naoh is this, and what amount of fecl3 can be consumed by it?

Which of the four hypothetical substances you investigated would be most harmful to living organisms? 50 points!

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.