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How do you identify types of pine trees?

Count the needles in each bundleNeedles on a pine tree branch typically appear in bundles of two, three or five. Counting the number of bundles present is an excellent start to determining the type of pine tree.Identify the length and color of the needlesSome pine trees have very short needles while others have very long ones. The pinon pine, for example, has needles that are generally one-half inch to 1 3/4 inches long. The Austrian pine, on the other hand, has needles that are 3 to 6 inches long. Different pine trees also have different colored needles. While some needles are dark green, oth..

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What is a group of mountains called?

Mountains are formed as the Earth’s crust collides, cracks, crumbles, folds and spews. They are found all over the world, including in the oceans. Mountains have steep sides and sharp or rounded edges. The highest point of a mountain is known as the peak or summit. When measured from top to bottom, the world's tallest mountain is Mauna Kea, an inactive volcano in Hawaii. There are many types of mountains, including volcanic mountains, dome mountains, plateau mountains and fault-block mountains.

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Why is the mesosphere important?

The mesosphere lies between the stratosphere and the thermosphere. It is one of the least studied layers of the Earth’s atmosphere because it lies above the level at which airplanes travel and below the level at which satellites orbit. The primary method by which scientists study the mesosphere is using rockets that are specifically designed to study this area, called “sounding rockets.”\nThe temperature of the mesosphere falls with increasing altitude. The coldest temperatures within Earth’s atmosphere occur at the upper boundary of the mesosphere. Temperatures at this altitude averag..

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What contribution is Henri Becquerel noted for?

What Becquerel had discovered was spontaneous radioactivity. For this, he was awarded the Nobel Prize in Physics in 1903, a prize he shared jointly with Marie Curie. Becquerel's work with radioactive materials left him burned and scarred. These burns and scars were the result of lengthy exposure to radioactivity, which may have contributed to his death at a relatively early age of 56.

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What did Michael Faraday do?

Faraday's law describes how a magnetic field in an electric circuit produces a voltage. This is typically demonstrated by wrapping two wires on opposite sides of an iron ring, then applying a current through one wire, which creates a magnetic field, causing an electrical effect in the other wire.\nAn electrical transformer works in a similar manner, based on the same principle. It uses the magnetic field from a current flowing through a primary winding device to create either a larger or a smaller voltage in a secondary winding mechanism. In power grids, this function increases the voltag..

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How many protons does helium have?

The number of protons in an element is equal to the element's atomic number. Helium has the atomic number 2, which means it has two protons. An element's atomic number appears directly above its symbol in some versions of the periodic table. In other versions, it appears in the top left corner of the element's square.Helium was discovered by Sir William Ramsay in 1895. Its name is derived from the Greek word for "sun." This gas is found in the air, as well as in natural gas deposits.

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What happens in spring?

Animals that hibernated during winter, such as bears, hedgehogs, frogs and ladybirds, emerge from their sleep and start to build up their energy for breeding. Many animals and birds produce new babies in spring because they need plenty of food and longer days to gather food for their offspring. Furthermore, migratory animals appear in some places, as they are attracted to the increasing number of insects and warm weather during spring. The longer daylight hours enable them to acquire food for their young.\nThere are frequent rain showers in April, and flowers start to bloom in May. Lots of pla..

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Does pure water conduct electricity?

Electricity does not flow through pure water, but it easily flows through impure water. In the environment, water dissolves many things; it is called the universal solvent. Even carbon dioxide in the air dissolves in water. Once these substances are dissolved, they carry the electricity through the water, especially if they form ions or charged atoms and molecules. It is the impurities in the water, not the water itself, that conduct the electricity.

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What are the properties of an acid?

While weak acids only add a sour taste to food, strong acids are corrosive and can burn through many substances. Since acids and bases, when combined, form a salt and water, acids can neutralize bases in a neutralization reaction. The resulting salt is made with an anion of the acid and a cation of the base. The hydrogen ion of acid combined with the hydroxide ion from the base forms the water.\nA substance is determined to be acidic by placing its molecules in water. If it releases a hydrogen ion when it breaks down, it is considered to be acidic. If the substance releases a hydroxide ion, it..

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What type of volcano is Colima?

The earliest known eruption of Colima was in the later part of the sixteenth century. The Colima volcano has seen a lot of activity in the last few decades. Major eruptions in the past have resulted in the formation of a deep crater on the summit of the volcano. Volcanologists believe it a threat to the region as plumes of ash and steam are often seen rising from the crater.

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