How can you tell the difference between limestone and marble?
Regional SpecificsMarble is a metamorphic rock, and limestone is a sedimentary rock. Limestone is more porous than marble, which is much harder. Limestone has white, gray and black colors, while marble comes in more diverse colors, from green to very light. How can you tell marble from limestone? Marble is usually light colored and is composed
How do bryozoans feed?
Regional SpecificsBryozoans feed on plankton and bacteria by sweeping the surrounding water with their lophophore. They are mainly eaten by nudibranchs (sea slugs) and sea spiders. Are bryozoans filter feeders? Bryozoa(Polyzoa/ Ectoprocta/ moss animals) are filter feeders that sieve food particles out of the water using a retractable lophophore, a “crown” of tentacles lined with cilia.
How do tube worms move?
Regional SpecificsAlthough the worms have no eyes, they can sense movement and vibrations and will retreat into their protective tubes when threatened. Giant tube worms reproduce by releasing their eggs into the water to be fertilized. After hatching, the young larvae swim down and attach themselves to rocks. How do tube worms work? The tubeworms’ feather-like
Was there an earthquake in San Jose yesterday?
Regional SpecificsThere were no significant confirmed earthquakes in or near City of San Jose in the past 24 hours. Was there an earthquake last night in San Jose CA? San Jose Earthquake FAQ The last earthquake in San Jose occurred 8 hours ago: Minor mag. 1.1 earthquake – 9km NE of San Martin, CA, on Thursday,
Why is it impossible to find quartz and olivine in the same rock?
Regional SpecificsIn yet other cases there is a true chemical incompatibility. It is because of this that quartz is never found with olivine, corundum, sodalite or lazurite. These minerals are just not chemically stable together. Can quartz and olivine be in the same rock explain? Bowen’s Reaction Series points out that there are commonly occurring mineral
What is Pennsylvania’s state mineral?
Regional SpecificsTable of minerals, rocks, stones and gemstones State federal district or territory Mineral Rock or stone Oklahoma Crystal: Hourglass selenite (2005) Rose rock (Barite) Oregon State Twin Minerals: Oregonite (2013) and Josephinite (2013) Thunderegg (1965) Pennsylvania Rhode Island Bowenite serpentine (1966) Cumberlandite (1966) What mineral is Pennsylvania known for? American geologists recognized the importance of