Where does longitude begin and end?

Consecutive degrees of longitude are 60 miles apart at the equator, and all come together at the North Pole and the South Pole. These are 360 degrees of longitude - 180 degrees lie east, and 180 degrees lie west of Greenwich, England, an arbitrary starting point used by all mapmakers.

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How many taste buds are on your tongue?

Those tiny hairs send messages to the brain about how something tastes, so you know if it's sweet, sour, bitter, or salty. The average person has about 10,000 taste buds and they're replaced every 2 weeks or so.

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Which is the only planet that rotates clockwise?

If you were to look down at the plane of the solar system from its 'north pole' you would see the planets orbiting the Sun counter clockwise, and rotating on their axis counterclockwise. Except for Venus. Venus would be rotating clockwise as it orbited the Sun counterclockwise.

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How many teeth are in a dogs mouth?

The average adult dog has 42 teeth: 22 in the mandible or lower jaw, and 20 in the maxilla or upper jaw. In each jaw there are 6 incisors, 2 canines, and 8 premolars. There are 6 molars in the lower jaw and 4 in the upper jaw. In adult dogs, approximate age can be determined by checking the wear on the incisors.

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When did Greenwich mean time start?

Greenwich Mean Time (GMT) was adopted as the world's time standard at the Washington Meridian Conference in 1884. This conference also established Universal Time, from which the international 24-hour time-zone system grew. This is why all time zones refer back to GMT on the prime meridian.

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Are we in interglacial period?

The earth is currently in an interglacial, and the last glacial period ended about 10,000 years ago. All that remains of the continental ice sheets are the Greenland and Antarctic ice sheets and smaller glaciers such as on Baffin Island.

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What type of fish is sushi made from?

Commonly used fish are tuna (maguro, shiro-maguro), Japanese amberjack, yellowtail (hamachi), snapper (kurodai), mackerel (saba), and salmon (sake). The most valued sushi ingredient is toro, the fatty cut of the fish.

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Can clownfish change gender?

Clownfish, wrasses, moray eels, gobies and other fish species are known to change sex, including reproductive functions. A school of clownfish is always built into a hierarchy with a female fish at the top. When she dies, the most dominant male changes sex and takes her place.

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Do turtles breathe under water?

As sea turtles are air breathing reptiles, they need to surface to breathe. Sea turtles can hold their breath for several hours, depending upon the level of activity. A resting or sleeping turtle can remain underwater for 4-7 hours.

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What temperature does water have to be to kill bacteria?

Some bacteria are actually resistant to the temperature of boiling water (100 degrees C.). To kill all the bacteria, you need to raise the temperature to about 121 degrees C. To get water to this temperature, you must heat it under pressure.

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What does a camel store inside its hump?

Camels do not store water in their humps, as it is commonly believed. The humps are actually reservoirs of fatty tissue. Concentrating body fat in their humps minimizes heat-trapping insulation throughout the rest of their body, which may be an adaptation to living in hot climates.

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How many islands are there in the Maldives?

The Maldives lies in two rows of atolls in the Indian Ocean, just across the equator. The country is made up of 1,190 coral islands formed around 26 natural ring-like atolls, spread over 90,000 square kilometers.

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What element has the largest atomic mass?

It is also known as eka-radon or element 118, and on the periodic table of the elements it is a p-block element and the last one of the 7th period. Ununoctium is currently the only synthetic member of group 18. It has the highest atomic number and highest atomic mass of all the elements discovered so far.

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Are zebras black with white stripes or white with black stripes?

Many zoologists would say that a zebra is white because its stripes end towards the belly and the belly is mostly white. Others would say that a zebra is black because if you shaved all the fur off a zebra the skin is mostly black. So it really depends on how you want to look at it.

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How long does it take for caffeine to take effect?

It only takes 45 minutes for 99% of the caffeine to be absorbed through these membranes. In humans the half-life for caffeine is anywhere from 2.5 to 4.5 hours, which explains why the average energy drink or coffee's effect lasts about 2 to 3 hours.

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How many miles is a nautical knot?

It is slightly more than a statute (land measured) mile (1 nautical mile = 1.1508 statute miles ). Nautical miles are used for charting and navigating. A knot is one nautical mile per hour (1 knot = 1.15 miles per hour ).

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