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What causes magma to rise?

Magma is melted rock found under the Earth's surface. It is formed in the lower section of the Earth's crust and the upper section of the mantle. It contains crystals, rock fragments and dissolved gases. Magma that rises to the Earth's surface is called lava. When lava cools and hardens it turns into igneous rock.

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What are the causes and effects of blizzards?

A blizzard is experienced in the higher latitudes where cold winds from the poles moves south and warm winds from the tropics moves north. Sometimes it may not snow during a blizzard but the snow on the ground is whipped up by sustained winds leading to poor visibility and life threatening conditions. The visibility drops to less than 400 meters during a blizzard and this can lead to road accidents.\nFrost bite, breathing difficulties and hypothermia can occur very easily if caught unprotected in a blizzard. Skin exposed to such severely cold condition can lose all sensitivity within minutes.\..

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What is the function of a leaf on a plant?

Plants depend on photosynthesis to create useful energy for their cells. One important ingredient of photosynthesis is sunlight, which cannot be absorbed through most of the plant's cells. However, the green parts of the plant, such as leaves, typically contain the chloroplasts for photosynthesis to take place in.

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How long can you live without a thyroid?

Symptoms may occur for people missing a thyroid gland who fail to take thyroid hormone replacement, according to About.com. The symptoms for irregular thyroid hormone levels include fatigue, depression, memory loss, joint or muscle pain, increased risk of heart disease, myxedema coma and death. Thyroid medication may take weeks or months to show noticeable effects. If the medication does not take effect after several months, a dosage adjustment may be necessary.

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What are the effects of overgrazng?

There are many signs that an area is suffering from overgrazing, including animals running out of palatable food. Overgrazed pastures feature a variety of short grass species including blue grass instead of orchard grass and other more appealing tall grasses. When this happens, livestock is usually fed supplements of hay throughout the year.Livestock that has been forced to feed in a pasture area that has been overgrazed tends to not gain as much weight as they should going into the cooler months. As a result, it is harder to keep the livestock healthy during low temperatures.Overgrazing can b..

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What is calcium iodate?

Calcium iodate is produced from a reaction containing an ion of calcium with a positive two charge and an iodate ion containing a charge of negative one. It has a molar mass of 389.88 grams per mole and a density of 4.52 grams per cubic centimeter. Calcium iodate is considered safe by the Food and Drug Administration, and is sometimes used as an antiseptic.

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What are some plants that grow tendrils?

Virginia creeper is a vine that is native to North and Central America. It is often mistaken for poison ivy, though poison ivy has three leaflets and Virginia creeper usually has five. Both plants have leaves that can turn scarlet in the fall, and Virginia creeper produces berries that are prized by birds.\nPeas, which are legumes, are an abundant food source all over the world. The seeds of the pea plant are edible, and in sugar peas the pods are eaten as well.

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Why are enzymes needed in the small intestine?

Like the stomach, the small intestine has many small ridges and furrows. Small projections called villi function to increase the surface area of the small intestine. Microvilli reside within individual villus cells and greatly increase absorptive surface area. Peptidase, sucrase, maltase, and lactase are enzymes that exist within the microvilli. The Springfield Techinical Community College notes that peptidase breaks down proteins, while the other three focus on carbohydrates.

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How do you calculate the max height equation?

Derive the original velocity and angle if not given these quantitiesIf the angle of launch and original velocity are not known, they can be derived from other information. To find the angle of launch from a given range and original velocity, use the equation 2(theta) = sin-1(gR/v^2), where theta is the angle and R is the range. Conversely, if the range and angle are known, take the square root of gR/sin2(theta). Unless a slide ruler is handy, a scientific calculator is necessary to find the sines of angles.Determine the vertical velocity of the projectileAs an example, assume a football has be..

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How do you work out the volume of an object?

Find the original water volumePour enough water to cover the object into a graduated cylinder. Read the volume of the water in the cylinder, and record it.Immerse the objectImmerse the object into the water in the cylinder completely. Read the new volume by noting which mark on the cylinder the water reaches, and record it again.Find the volume of the objectSubtract the original water volume from the new volume to get the volume of the object. For instance, if the original water volume in the cylinder is 150 cubic centimeters and the new volume after immersion is 200 cubic centimeters, the vol..

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