Does Coquina fizz in acid? Calcite is the main component of limestone rocks and its varieties like oolitic limestone, fossiliferous limestone, coquina and marble. The calcite mineral is made of calcium carbonate which reacts with acid. Other varieties of calcium carbonate minerals such as aragonite and dolomite will also fizz during this test. Is Coquina […]
How long is a freight train allowed to be?
How long is a freight train allowed to be? According to data that two Class I railroads provided to us, their average train length increased over the 10-year period of 2008 through 2017 by about 1,500 feet for one railroad (from about 6,000 to 7,500 feet, or up to about 1.4 miles) and about 1,200 […]
Is a pencil sharpener a system?
Is a pencil sharpener a system? why a pencil SHARPENER consists of 2 simple machines: The old fashioned pencil sharpeners that are mounted to the wall and cranked by a handle are an example of a compound machine that consists two simple machines: the wheel and axle and a wedge. What type of lever is […]
Who first invented the battery?
Who first invented the battery? Alessandro Volta When did Alessandro Volta create the battery? 1800 What did the first battery look like? “This was the first battery that we know of, and it was basically a clay jar with a copper cylinder, probably surrounded by lemon juice or something like that.” Supposedly discovered in 1936, […]
Where in the sky is the Christmas star?
Where in the sky is the Christmas star? Those looking to see the star will want to look above the southwestern or western horizon after sunset, experts said. Why is it called the Christmas Star? The Star of Bethlehem, or Christmas Star, appears in the nativity story of the Gospel of Matthew where “wise men […]
Who believed that children are born naturally good?
Who believed that children are born naturally good? Locke What does Tabula Rasa mean? scraped tablet What are three things that are core to your identity? The Four Core Elements Your Sense of Significance. Your Purpose. Your Personal Qualities. Your Values. How do I discover my self? 6 Steps to Discover Your True Self Be […]
What is the difference between boron and silicon?
What is the difference between boron and silicon? Boron is exclusively found in the mineral fraction of bone. Silicon is distributed equally in the mineral and collagen fractions. Data suggest boron and silicon have different biological effects on bone. Silicon loading into bone mineral may be influenced by nutritional factors. What is boron used for? […]
What are the different ocean currents that carry warm water give at least three examples?
What are the different ocean currents that carry warm water give at least three examples? They carry warm water from the tropics poleward. Examples include the Gulf Stream, the Agulhas Current, and the Kuroshio. Cold currents flow toward the equator on the eastern side of ocean basins. What is the purpose of prevailing winds? Due […]
What are the signs and symptoms of nystagmus?
What are the signs and symptoms of nystagmus? In addition to rapid eye movement, nystagmus symptoms include: sensitivity to light. dizziness. difficulty seeing in the dark. vision problems. holding the head in a turned or tilted position. the feeling that the world is shaking. What type of doctor treats nystagmus? Johns Hopkins neurologists have treated […]
What are the primary differences between products and services?
What are the primary differences between products and services? A product is a tangible item that is put on the market for acquisition, attention, or consumption, while a service is an intangible item, which arises from the output of one or more individuals. What are the key differences between production of goods and delivery of […]