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What are the chemical properties of iron?

Iron is one of the most abundant metals on Earth, comprising 5.6 percent of the crust. Iron alloys with carbon to make steel, and it is easily alloyed with many other metals, such as tungsten and chromium. Iron is essential to both photosynthesis and respiration because of its affinity for oxygen.

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What does it mean when there are a few squamous cells in your urine?

Squamous cells in the urine are a type of epithelial cells, which come from the tissues lining the bladder or urethra, among other structures in the body. It's normal for epithelial cells to show up in urine, though the number of them increases in the event of inflammation or infection in the urinary system. The presence of some epithelial cells in urine can be cause for concern; for example, renal tubular epithelial cells, which come from the kidneys, may indicate a kidney problem, according to Johns Hopkins Lupus Center.\nIn rare cases, the presence of atypical squamous cells in the uri..

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What is the thinnest layer of the earth?

Earth's crust is made up of many substances, including water, granite, basalt, silicon, aluminum, sodium and potassium. The crust is extremely thin in the oceans and gets thicker underneath the continents. The Earth's crust reaches its thickest density in mountainous regions. Interestingly, this layer only accounts for about 1 percent of the total volume of the planet.

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What is the density of glass?

Soda-lime glass is the most common type of glass and it is usually what is being referred to when the term "glass" is used. In addition to several types of additives, soda-lime glass is made from lime (CaO), sodium oxide (Na2O) from sodium carbonate (Na2O3), and silicon dioxide (SiO2), also known as silica and the most common fundamental component in glass. Silica can account for up to about 75 percent of glass by weight.

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What is diethyl ketone?

Diethyl ketone is an organic solvent and, like other compounds in this class, is a flammable substance that should be stored in a flammable cabinet. This compound exists as a colorless liquid at room temperature and has a boiling point of 102°C. It is commonly used in the generation of vitamin E and is a solvent in many paints.

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Which bones make up the hard palate?

The incisive bone is located between the canine tooth and lateral incisive tooth. It is a linear structure extending from the interior palatine fossa. It contains the sockets where the incisor teeth are held. It also contains the anterior nasal spine, the whole thickness of the alveolus and the corresponding part of the floor of the nose.\nThe hard palate creates part of the roof of the mouth. It is concave and covered with holes called foramina. These holes allow the passageway of nutrient vessels, palatine vessels and nerves. The surface is uneven and rough to the touch. The right superior m..

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How does natural selection work?

Every living thing faces a set of challenges in the world. Organisms must eat without being eaten, resist disease and parasites and eventually reproduce. The way an organism approaches these challenges is conditioned by its genes, which build organisms' bodies and influence their behavior. Some life strategies work better than others, such as running from predators rather than standing and fighting, so the individuals with the stronger flee genes tend to live longer and have more offspring. Those offspring are statistically more likely than average to have inherited the flee genes from th..

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What is the smallest rain forest in the world?

The Bukit Nanas Forest Reserve is the oldest permanent forest reserve in the Malaysia. It was dedicated in 1906 to preserve an area of virgin rain forest within the developing city. Despite its small size, the preserve is home to native monkeys, monitor lizards, pythons and squirrels, as well as tropical tree species like the pulai, meranti and Keruing.

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What is the impulse momentum theorem?

Impulse is mathematically defined as force acting on a body times the duration of that force and denoted by "J." Momentum is mathematically defined as the product of the mass of the body and its velocity and is denoted by "P." Momentum can be considered as a body's ability to resist stopping forces, meaning that, when subjected to a stopping force, the momentum of a body tends to keep it moving in its current direction.\nAccording to the impulse momentum theorem, the change in the momentum of a body is equal to the impulse acting on the body. Impulse and momentum are both vector quantity,..

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What is the electron configuration of uranium?

Uranium is a radioactive element denoted by the chemical symbol U. It has 7 energy levels with 92 electrons, six of which are valence electrons. The element Radon (Rn) has an atomic number of 86; bracketed, Rn indicates uranium having an atomic core of 86 electrons. Energy levels depicting the valence electrons are shown as 5f3 6d1 7s2.

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