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What are some differences between kerosene and other oils?

Kerosene is sometimes referred to as "lamp oil" or "coal oil." The second term is technically incorrect because kerosene is not made from coal; it is a petroleum product. Kerosene is made from number 1 fuel oil by filtering it to a higher standard. Bringing kerosene up to a much higher filtration standard and treating it to a water-removal process produces jet fuel type A.At a cloud point rating of -40 degrees Fahrenheit, kerosene can continue to flow at lower temperatures than number 2 fuel oil or diesel oil, which can begin to form visible crystals at 16 degrees. When a fuel oil's cloud..

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What provides temporary storage of food enzymes and waste products?

Vesicle is a general term for any membrane-bound small organelle. Vesicles are primarily formed by the endoplasmic reticulum, Golgi apparatus and the plasma membrane. Transport vesicles are utilized in the cell to transport cargo within and outside the cell. When substances are moved outside of the cell, the process is called exocytosis, explains Alberts et al. The transport vesicles travel within the cell along the cytoskeleton.\nDue to the membranous exterior of a vesicle, the vesicle can cross cell membranes by merging with the target membrane and release the cargo it carries, according to ..

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Why are ear muscles vestigial?

Some people are able to wiggle their ears, but in order to change the direction of hearing, humans have to move the entire head. Another vestigial body part found in humans is the remnant of a nictating membrane in the corner of the eye. In birds and reptiles, this third eyelid is used to protect the eye, but in humans, only the nonfunctional remnant remains.

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What is the compound for ZN No2 2?

This compound is a crystalline solid that is completely colorless. While it works to increase the burning of combustible materials, it is noncombustible by itself. If someone exposes this compound to high levels of heat or fire for a long time, there is a risk for an explosion. When this material is in a fire, the production of toxic oxides of nitrogen occurs. This compound also has uses in manufacturing items, such as medicines, dyes and other chemicals.

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What is a brachial plexus, and why is it important?

There are five main roots that make up the brachial plexus, says the St. Louis Children's Hospital Washington University School of Medicine. They emerge from the upper spine and pass around the bones between the spine and the upper arms. They then branch into roots, upper and lower trunks, anterior and posterior divisions, lateral, medial and posterior cords, and nerves. These include the limbs of the median nerve, the axillary and radial nerves, the musculocutaneous nerve and the ulnar nerve.\nThe brachial plexus is subject to several types of injuries, says Johns Hopkins Medicine. These..

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What is a dissecting scissor used for?

Dissecting scissors have several uses in the operating room when used by medical professionals. They aid in making incisions, removing skin and flaps of tissue, and removing stitches. They have specialized structures for specific procedures, such as curved blades to protect an incision during probing. Dissecting scissors are often more useful than scalpels because they provide more mechanical leverage.

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What power of 10 does the prefix "micro" refer to?

"Micro" also means small; many microorganisms are small, but not all are exactly 1 micron. Dust mites, for example, range from 0.1 to 0.3 microns in size.\nAn average human hair is 75 microns across. Human eyes can usually see particles that are about 25 microns across; anything smaller than that requires a microscope.

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How big is a millimeter?

A millimeter constitutes about three one-thousandths, or less than 1 percent, of a foot. In metric terms, a meter consists of 1,000 millimeters, so 1 millimeter makes up one-thousandth of a meter. The relationship between millimeter and meter may be expressed as 1 millimeter = 0.001 meters. A centimeter consists of 10 millimeters, so 1 millimeter equals one-tenth of a centimeter. The abbreviation for millimeter is mm.

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Why is time important?

Most people like to make memories with family and loved ones to pass the time. They do this in many different ways. They visit family members at holidays and during special events. They also start families of their own and make memories with them.\nWith limited time, people like to enjoy their lives. They go to college, purchase homes and progress through their careers, so they can have an enjoyable life while they have time. There are also many people who are ill who long for more time with their family and friends. They may feel their time on Earth was limited, but they still make the most o..

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What are the properties of sandstone?

Sandstone is classified as a sedimentary rock, forming gradually over time in deposits from sheets of minerals and sand. These elements compress and bind over time, forming sandstone pits. Sandstone exists in several natural colors, including brown, pink, purple and red. Sandstone's durable composition makes it valuable in the fields of construction and masonry, as it proves quite weather-resistant. Sandstone resists weathering and fading in many climates, but faces rapid deterioration upon freezing, which causes water damage. In the United States, sandstone initially formed rowhouses in ..

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