â My partner and I had a long talk over breakfast this morning about term life insurance. We weighed the pros and cons and found ourselves wanting to talk to an expert on the matter. Was this Helpful?
Rocks are used all around us in many different ways. In the classroom, students use rocks everyday. Graphite, a metamorphic rock, is the part of the pencil used for writing.Slate, another metamorphic rock, was used to make blackboards in years past.Now most blackboards are constructed of man-made materials. Chalk is a soft form of limestone which is a sedimentary rock.ocks are used all around us in many different ways. In the classroom, students use rocks everyday. Graphite, a metamorphic rock, is the part of the pencil used for writing.
Live rock is usually extremely porous and is used as the primary biological filter in saltwater tanks that have it. The many holes and crannies in this rock give it a tremendous amount of surface area for the beneficial aerobic (needs oxygen) and anaerobic (does not need oxygen) bacteria to live on.This is what makes saltwater live rock such a great biological filter for your tank.The beneficial bacteria helps convert the ammonia from fish waste and uneaten fish food into nitrIte. The second step is when this bacteria converts the nitrIte into nitrAte.he many holes and crannies in this rock give it a tremendous amount of surface area for the beneficial aerobic (needs oxygen) and anaerobic (does not need oxygen) bacteria to live on. This is what makes saltwater live rock such a great biological filter for your tank.