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How is fog made?

Met Office notes that the way fog forms depends on the type of fog. One of the most common types is radiation fog, which typically happens in winter during clear-sky conditions. When the thermal radiation in the atmosphere cools the air near the surface of the ground, air becomes less able to hold moisture and fog forms. Fog also forms on hills and valleys due to the different altitudes.\nAccording to Wikipedia, fog is always low-lying due to the fact that its density is generally greater than that of the surrounding air. Fog is almost always formed close to bodies of water, ranging from small..

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How many electrons does potassium have?

Potassium is a metallic element that falls in the alkali metal family. It was first discovered in 1807 by Sir Humphrey Davy. Potassium is one of the main electrolytes, and it is important for human health. Due to its high reactivity with water and other substances, it is used to make a wide variety of salts and specialty soaps. While potassium metal can be formed, it is rarely used in commercial applications, where sodium metal is typically preferred.

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What is the main difference between a human heart and frog heart?

The ultimate destination for oxygenated blood within a frog is the carotid arteries, which send blood to the brain, while the deoxygenated blood goes to the lungs and skin to gather oxygen.\nWithin a human, circulation forms a loop from the heart throughout the different sections of the body. Arteries gather blood with oxygen from the heart and send it out to the tissues where it disperses oxygen and gathers carbon dioxide on the way back to the heart. Then, the blood goes from the heart to the lungs to receive oxygen before coming back to the heart and then out through the primary arteries ag..

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Why does metal expand when heated?

Thermal expansion is an important property of many materials, and few materials break the pattern of expanding as they increase in temperature. However, solid water and, at low temperatures, even liquid water, actually shrinks as it heats up. Water is an exception, however, with a relatively unique molecular structure and properties that cause its solid state to be less dense than its liquid state.\nThermal expansion is not only a common property but also an important one. Different metals expand at different rates with temperature change, which is a feature used in bimetallic strip thermomete..

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What is the prime mover for arm extension?

The three heads of the triceps brachii originate at the scapula and humerus. Before they insert at the olecranon of the ulna, these three heads merge. The opposite of extension, flexion, occurs through action of three muscles: the brachialis, biceps brachii, and brachioradialis. These flexors are all on the anterior or front of the upper arm and attach between the humerus and scapula down the forearm to the radius and ulna. The biceps brachii also supinates or twists the forearm.

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What is the shaft of a long bone known as?

The bones that make up the skeletal system are needed to provide the body with shape and support, as well as protection for certain internal organs. Long bones are made up of several sections including the metaphysis, the area of bone between the diaphysis, and the epiphysis, as well as plates of cartilage, known as epiphyseal plates. These plates ossify at the conclusion of puberty and limit further growth.

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What is the name of the closest galaxy to Earth?

The solar system that encompasses the sun and its surrounding planets, including Earth, resides within the Milky Way galaxy. Prior to the discovery of dwarf galaxies that lie in proximity to the Milky Way, the spiral galaxy Andromeda was thought to be the closest to Earth at 2.2 million light years away. However, this distance is gradually decreasing as Andromeda is bound for a collision course with Milky Way, which is likely to occur in 5 billion years.Modern astronomers have discovered several minor star systems that are closer to the Milky Way than Andromeda. The Canis Major Dwarf Galaxy is..

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What is a glacial outwash plain?

Glaciers form when snow deposited on the ground fails to melt completely and builds up to form a large mass of compacted ice. Because of the way they form, glaciers contain much more than pure ice. Dust, windblown debris and spillage from nearby landslides is incorporated into the glacier as fresh snow falls on it each winter. The glacier picks up still more debris as it slides downhill.\nThis acquired material tends to be broken down by the crushing force of the mass of ice until the glacier is rich with fine sediment mixed with ice. When the glacier melts, the water it releases carries much ..

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What is creatine kinase?

This biochemical reaction is important for tissues that use ATP quickly. ATP is the energy source for the body; muscle and brain tissues that require large amounts of energy consume ATP rapidly. Creatine kinase uses an ATP molecule to convert creatine into phosphocreatine. This process can be reversed, making creatine kinase an important enzyme to maintain the balance of ATP in many tissues. An example is the phosphocreatine present in the tissue cells can be used by creatine kinase to create ATP for high-energy muscle and brain tissue for use.\nPhosphocreatine is often present in abundance i..

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What is Sputnik II?

Sputnik 2 launched on a modified version of the booster used for Sputnik 1 and entered low Earth orbit on Nov. 3, 1957. According to NASA, part of the orbiter's nosecone failed to properly detach, resulting in the failure of the on-board climate system. Temperatures inside the craft rose to over 40 degrees Celsius, probably contributing to the death of its canine occupant, who survived about two days instead of the planned 10.

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