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What causes rainbows?

The shortest wavelength, violet, bends the most, while the longest, red, bends the least. Visible light is made up of all the colors of the rainbow and comes from the sun. For a rainbow to be visible, water droplets must be floating in the air and the sun must be behind the observer. Any clouds must be out of the way of the path of light, and the contrast must be sufficient for the observer to view it.\nA rainbow is not an object and does not exist in a particular place. A rainbow naturally occurs as a full circle, a phenomenon that can be seen on occasion from an airplane, but from the ground..

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Do East Coast people watch the sunrise like West Coast people watch the sunset?

Because the sun rises anywhere from approximately 5-7 a.m. on the East Coast, it stands that it takes extra planning and effort to change the average person's sleep schedule to be able to watch the sun as it rises. Alternatively, individuals on the West Coast can easily view the sun as it sets during normal waking hours, in the late afternoon and in a relaxed social setting.

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How does wind erosion occur?

Wind erosion is a major cause of soil loss, deterioration of soil structure and causes soil to blow in and around homes, covering highways and roads and smothering crops.During the process of wind erosion, suspension occurs when fine dirt is lifted into the air. Fine dirt travels long distances, high in the air.Wind erosion can be prevented by soil tilling and by properly managing crops. Crop barriers and crop strips also help farmers escape the ravages of wind erosion.

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What are three chemical reactions in a kitchen?

Some chemical reactions in kitchens are less obvious. For instance, when an individual washes dishes with detergent, the cleanser has chemical interactions with grease and other residue. Also, when people digest food, chemical reactions occur.\nWhen a chemical change takes place, chemical bonds between atoms are broken and new combinations form. Therefore, new substances are created. In addition, results are not reversible.

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How long do fingerprints last?

In forensic science, a fingerprint that gets left on any given surface after being touched is known as a latent fingerprint. These fingerprints are commonly used in criminal investigations, and they can last for days at a time. Made of water and biological components such as triglycerides and fatty acids, latent prints tend to loose their water content after about 24 hours. However, there are multiple methods for preserving latent prints, and these preserved images can last indefinitely. Latent fingerprints tend to disappear most quickly from nonporous materials that are exposed to humidity an..

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What does GABA do?

Mammals have more GABA receptors than possibly any other type of receptor in their central nervous system. When GABA binds to these receptors, they change their shape slightly. This change of shape allows charged atoms, or ions, to pass into the receptor through ion channels. Specifically, this allows for chloride ions to pass into the receptor, inhibiting the nerve cell. Because channels are utilized for this, GABA receptors are called channel receptors.\nCells that produce GABA have also been found in the digestive and reproductive organs as well as the lungs. GABA might also be partially re..

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How do you describe clouds?

High-level clouds form 20,000 feet above the ground and include cirrus, cirrostratus and cirrocumulus. These types of clouds are easily recognized by their widespread concentration and wispy, gossamer or lumpy appearance. They are composed of ice crystals. At sunset, these clouds may reflect a variety of colors.\nMid-level clouds form 6,500 to 20,000 feet above ground and include altostratus and altocumulus. Their composition depends on height, time of year and temperature, so they can be made of water, ice or both. Altostratus clouds appear flat and disconnected while altocumulus clouds are m..

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Which planets can be seen without a telescope?

Ancient astronomers considered these five planets, along with the moon and the sun, to be the seven special celestial objects. This gave rise to the notion of seven heavens in many ancient religions. Ancient astronomers used the movements of the planets to track the seasons, decide when to plant crops and to predict the future.

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How do you propagate a rubber tree plant?

Select and cut the stemSelect a strong, healthy stem that is at least 12 inches long. After removing any leaves above and below the rooting area, cut the stem with a sharp knife. Remove a 1-inch wide strip of soft tissue all the way around the stem. Do not cut through the hard center wood. Dust and wrap the cutDust the cut with rooting hormone. Tuck dampened spaghnum moss around the cut. Wrap the moss with plastic and secure it to the plant with ties. Cover the moss completely to keep it damp. Keep watering as needed.Remove and pot the rooted sectionCheck underneath the moss and black plastic ..

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How are organisms interdependent?

Animals that eat other animals are called predators. Examples of predators include spiders, snakes and sharks. The animals these predators consume are called prey species. For example, some prey species of spiders include flies, roaches and beetles. Many animals are both predators and prey, such as a snake that eats a rodent but is in turn eaten by a hawk.\nExamples of parasites include intestinal worms, protozoans and ticks. These animals derive nutrition from other animals, called hosts. For example, a tick attaches itself to an animal and then begins to drink blood from the host. Often, the..

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