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Amar Kumar 8 years, 2 months ago
- Sunita Williams is an American lady of Indian origin.
- She is the second woman of Indian heritage to have been selected by NASA for a space mission after Kalpna Chawla .
- The second astronaut of Slovenian heritage after Ronald M. Sega.
- She holds three records for female space Travelers, longest space flight (195 days) number of space walks (four) and total time spent on space walks (29 hours and 17 minutes).
- Sunita William's was born on 19th September 1965 at Euclid-Ohio in America.
- She is married with Michael Williams.
- Williams took with her to the International Space Station 155) a copy of Bhagavad Gita, a small figurine of Ganesha and some as some.
Posted by Harprit Kawa 8 years, 2 months ago
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Amar Kumar 8 years, 2 months ago
Stepwell:These are wells or ponds in which the water is reached by descending a set of steps. They may be multi-storied with a bullock turning a water wheel to raise the well water to the first or second floor.The majority of surviving stepwells originally served a leisure purpose as well as providing water.
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Jayavardhini Kolupuru 8 years, 2 months ago
Amar Kumar 8 years, 2 months ago
Rainwater harvesting is a technique of collection and storage of rainwater into natural reservoirs or tanks, or the infiltration of surface water into subsurface aquifers (before it is lost as surface runoff). One method of rainwater harvesting is rooftop harvesting.
Posted by My Sandilya 8 years, 2 months ago
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Amar Kumar 8 years, 2 months ago
The churning action of the stomach muscles physically breaks down the food. The stomach releases acids and enzymes for the chemical breakdown of food. The enzyme pepsin is responsible for protein breakdown. The stomach releases food into the small intestine in a controlled and regulated manner. The pancreas produces a juice containing several enzymes that break down carbohydrates, fats, and proteins in food.
Posted by Ashka Bhanwar 8 years, 2 months ago
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Amar Kumar 8 years, 2 months ago
Proper food:a diet consisting of the proper quantities and proportions of foods needed to maintain health or growth.Proper food contains all the nutrients of food like vitamins,minerals,protein,carbohydrates,fats,fibers and water .
Posted by Manju Raveendran 8 years, 2 months ago
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Amar Kumar 8 years, 2 months ago
Hibernation:It is a deep sleep that helps them to save energy and survive the winter without eating much. During hibernation the animal's body temperature drops, and its heartbeat and its breathing slow down so that it does not use much energy.
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Varun Banda 8 years, 2 months ago
Foods past their prime might develop mold, become rancid, or spoil in other ways, but they are likely to look, smell, and taste bad before they actually become unsafe to eat.It may result in health problem.
Amar Kumar 8 years, 2 months ago
Eating food that has expired might cause physical discomfort, such as an upset stomach that might or might not be accompanied by vomiting. Gas and bloating are additional symptoms that can occur if you eat expired food. Moldy foods can cause allergies or respiratory distress, but some moldy foods can lead to illness. It is always safer to throw the food away rather than cutting off the mold and eating it anyway.If you regularly eat food that has expired, you might be missing out on key nutrients.
Posted by Prashant Kumar 8 years, 2 months ago
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Amar Kumar 8 years, 2 months ago
Food preservation is essential because it extends the length of time during which the food is nutritionally viable and safe to eat. Most fresh fruits, vegetables and animal products spoil quickly without refrigeration. Preserving food ensures that it can be kept for long periods of time without spoiling.
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Amar Kumar 8 years, 2 months ago
Diseases carried by house flies are typhoid, cholera and dysentery, salmonella, anthrax and tuberculosis. House flies have also been known to transmit the eggs of parasitic worms.
Posted by Sreya Sreelal 8 years, 2 months ago
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Amar Kumar 8 years, 2 months ago
Water pollution is the contamination of water bodies (e.g. lakes, rivers, oceans, aquifers and groundwater). This form of environmental degradation occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatment to remove harmful compounds.
- There are also less common causes of water pollution like accidental oil spills.
- Many factories dispose of chemical waste by dumping the waste into lakes, rivers or the ground.
- The pesticides that farmers use to eliminate insects can also reach surface water and groundwater in significant quantities.
- Underground storage tanks for gasoline and other liquids can directly contaminate groundwater.
- Salt placed on icy streets during winter also pollutes water, even though salt is not especially dangerous to people’s health.
- Other sources of water pollutants include sewage and wastewater, septic tanks, and ocean and marine dumping. Soluble waste, or sewage.
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