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How do you safely store hydrogen fuel ?

If you store hydrogen fuel as gas, you must get high-pressure tanks of 5,000 to 10,000 psi. You can also store hydrogen fuel as liquid at -423.4 degrees Fahrenheit. In addition, you can store hydrogen fuel as a solid by allowing it to react with metals or chemical compounds. Storing hydrogen in solids involves the use of chemical hydrogen storage, carbon-based material, and/or metal hydrides. You can also store hydrogen fuel in an alternative chemical form.\nYou can use an onboard automotive hydrogen storage system that The Fuel Cell Technologies Office has developed to store hydrogen fuel for..

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What is the enthalpy of solution?

A solution is a mixture of two materials called the solvent and solute. The solute is the substance that dissolves into the solvent.\nDissolving a solute into a solvent causes exothermic or endothermic reactions. Endothermic reactions create a positive change in the heat of a solution due to the energy released into the surroundings and the energy needed to break apart the solute. Exothermic reactions cause a negative change in heat by raising the temperature of a solution and ultimately expelling the heat into the surroundings.

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What are some famous blizzards?

The Storm of the Century killed at least 300 people and caused an estimated $6 to $10 billion in damage despite a severe storm warning from the National Weather Service two days in advance. It hit 26 states in the eastern United States.\nThe storm that occurred from January 27 to 28 in 1922 is sometimes called the Knickerbocker Storm. It hit the upper south and middle Atlantic states with an average of 28 inches of snow in Washington, D.C. The weight of the snow caused the roof of the Knickerbocker Theatre to collapse, giving the storm its name.\nSometimes referred to as the Great White Hurric..

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What do fungi have in common with plants?

Fungi and some primitive species of plants have reproductive similarities, as well. All fungi utilize spores to reproduce, while more advanced plant species use pollen and seeds to reproduce. Algae and ferns are the most common plant species to release spores.\nFungi and plants have only been classified as separate kingdoms since 1969, and both kingdoms are studied as part of botany. Despite this close classification, fungi are more closely related to animals than to plants. While plants and fungi share structural similarities, fungi and animals are descended from a closer common ancestor than..

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How do space craters get their names?

According to the IAU, there are individual task groups assigned to planets and other celestial bodies. How official! Once the task group has reviewed the proposed names, the final stamp of approval comes from the Working Group for Planetary System Nomenclature.In addition to naming craters, the IAU assigns names to other notable planetary features, including plains, valleys and mountains. Mount Doom, named after a location in J.R.R. Tolkien’s “The Lord of the Rings” series, is one of these mountains; it can be found on Titan, Saturn’s largest moon.The IAU accepts suggestions for names ..

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What is the function of the cambium layer?

The cambium promotes secondary growth of stems and roots, which is the growth that occurs after the first season. In addition to increasing the tissue layer of the stem, the cambium may also function in healing for injured plants. When this happens, the cambium forms within callus tissues, which are the cells that grow over the surface of the injured plant.

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Where does El Nino occur?

However, the term El Niño has since been adapted to refer to unusual changes in sea surface temperature anywhere throughout the Pacific Ocean. These abnormalities in the temperature of the sea surface can cause many different temporary effects on the world's weather and climate.\nThe term El Niño means the boy child in Spanish, and it was first used by fisherman in South America to refer to unusually warm water off the coast. As these changes often occurred around Christmas, the fisherman called them El Niño, which essentially refers to the baby Jesus.\nEl Niños occur due to the chang..

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What are types of wind erosion?

Wind erosion is a significant force despite its limitations, altering and posing dangers to the environment. In areas such as sand dunes, wind erosion is the main force shaping the landscape, and indeed, in some deserts the landscape changes constantly. Sand grains are large enough that they are eroded in the manner of saltation, being picked up by the wind but usually redeposited relatively close by.\nSaltation is often an important factor in creep. While wind alone might not be strong enough to move the larger particles in a landscape, the impact of mid-sized particles undergoing saltation c..

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Is 12:00 noon a.m. or p.m.?

A.M. stands for ante-meridiem and and p.m. stands for post-meridiem. Ante-meridiem refers to the time before midday and post-meridiem refers to the time after midday. At 12:00 noon, the position of the sun is at the highest point in the sky and it is exactly midday. With this in mind, it can neither be before midday or after midday. It is exactly midday. Midnight is the exact end of the day.

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How does an electroscope work?

The suspended strips and the metal rod are able to conduct electricity. The metal rod passes through the jar with a stopper that is not capable of conducting electricity. When a charged object is brought near the metal rod, both strips repel each other and resemble an inverted V. The strips repel each other because they have acquired a like charge. When the strips have a like charge and separate, the electroscope becomes charged. If an object with the opposing charge is brought near the metal rod, the strips of gold leaf will hang straight down. The strips no longer repel each other because th..

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