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Where should you hide during an earthquake?

Sheltering under a strong desk or table is part of the safety protocol known as "drop, cover and hold on." This procedure is designed to prevent indoor injuries from falls, falling objects and flying glass that may occur during an earthquake. The three steps involved are to first drop to hands and knees; then, cover at least the neck and head, and the whole body if possible; and last, hold on to the shelter object if one is available. Wait until the shaking stops before moving, and be aware that aftershocks may occur. If there is no table or desk nearby, sit near an interior wall or by low-lyi..

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How do animals survive in the desert?

In order to avoid heat, many desert animals restrict their activity to the cooler mornings and evenings. They also burrow underground or into cacti to avoid daytime heat. Some animals also migrate during the hottest parts of the year. Desert animals dissipate heat through lighter coloring, large ears and long appendages and through gaping mouth-breathing.\nIn order to retain water, desert animals burrow into moist earth to absorb water into their bodies, or they obtain moisture through the food they eat. Desert animals obtain water from water-retaining plants such as cactus and succulents. The..

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How big is 5 centimeters?

Many people in the United States cannot yet understand the metric system; therefore it becomes necessary to convert metric units into understandable units such as inches and feet. To convert centimeters to inches, multiply the number of centimeters by 0.39. This provides the number of inches equal to centimeters. In this instance, five times 0.39 equals 1.968 which is rounded to two inches. In the metric system, five centimeters are equal to 50 millimeters.

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What is the function of a lysosome in an animal cell?

In an animal cell, the lysosome acts as a basic digestive system, working to break down nutrients that enter the cell. The enzymes a lysosome contains can break down beneficial materials, bacteria and waste materials that enter the cell, allowing the body to obtain nutrients and remove unneeded materials. Without lysosomes, your body would be unable to digest food, fend off bacteria or remove dead materials from cells as they grow and are replaced.\nLysosomes are the organelles responsible for helping the body digest nutrients, but they also assist with fighting off disease, removing waste, an..

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What is a sciatic nerve diagram?

The sciatic nerve is responsible for controlling almost the entirety of the lower back and the leg. When this nerve is compressed or irritated, a painful condition called sciatica can result. Sciatica can make it difficult or painful to bend at the knee although it can affect other parts of the lower back and upper leg. Spinal disc herniation is a common cause of sciatica as is degenerative disc disease.

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What is the formula for calculating potential difference?

Potential difference affects how current flows from one point of a circuit to another. The larger the potential difference, the quicker the flow of the current through a circuit. Potential difference is measured in either volts (V) or Joules per coulomb. In practice, the potential difference within a circuit can be measured using tools, such as a voltmeter.

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How do you determine the correct ski length for your height?

Retailers such as Powder7 and Backcountry provide ski length sizing charts on their websites. Powder7's table includes height and expertise, while Backcountry's includes height and weight. Typically, ski sizing charts focus on height and are based on straight-sided skis. Gender, terrain, ski type and intended use are other factors to consider when deciding on ski length.\nSki sizing selectors take other aspects into account. Level Nine Sports Inc. offers a ski selector on its website that provides a recommended ski length based upon skier ability, height and weight. The selector also..

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What is totipotency in plants?

Totipotency often appears when plant tissues in cells are taken away from their typical environment and put on artificial substances within a tissue culture. A plant cell in this situation may begin expressing the program necessary for building an entirely new plant. Not all plant cells have this ability because some have lost some or all genomes while having their environment changed or disturbed.\nWhen expression of totipotency begins, mature cells go back into the cell cycle and start dividing again, which sometimes leads to organized development. However, this process may lead to an interm..

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How do electrons become excited?

In the Bohr model of an atom, neutrons and protons are located in the nucleus, with the electrons orbiting around. Electrons are negatively charged particles and protons are positively charged particles. Therefore, electrons and protons attract each other, causing electrons to fill the orbitals closest to the nucleus first. Electrons move into higher orbitals when giving energy, but shortly after, will move back to the ground state by emitting a proton. An example of an electron in an excited state is the electron of the hydrogen atom when it is in the n=2 orbital. When in the n=1 orbital, it ..

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What is butane's chemical formula?

Butane, also called n-butane, has a constitutional isomer, which is a compound with the same molecular formula but a different structure, called isobutane. In contrast to butane, this branched isomer features three CH3 groups and a CH group, all of these atoms adding up to the same C4H10 molecular formula.\nButane and isobutane are colorless and odorless gases. They are used as aerosol propellants and are included in the formulation of several cosmetic products, such as hair conditioner and shaving cream, as indicated by Cosmeticsinfo.

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