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Ask QuestionPosted by Manikant Goswami 7 years, 11 months ago
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Posted by Manikant Goswami 7 years, 11 months ago
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Yogita Ingle 7 years, 11 months ago
Electrical energy is energy that is caused by moving electric charges.
Examples of Electrical Energy:
1. In a car battery, the chemical reaction creates an electron which has the energy to move in an electric current. These moving charges provide electrical energy to the circuits in the car.
2. A lamp is plugged into a wall outlet. The electric current moves from the wall outlet into the light bulb in the lamp supplying electrical energy. When the electric charges slow down in the filament to light the light bulb, light energy is created.
3. Batteries in a cell phone supply chemical energy to electric charges. The electric charges use the energy to be put into motion. This electrical energy now travels through the phone supplying the phone with electricity.
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Yogita Ingle 7 years, 11 months ago
Animals inhale oxygen and exhale carbon dioxide. This is used by plants in the process of photosynthesis to prepare food. During this process, plants release oxygen which is used by human beings and animals. Thus animals and human beings help each other in the exchange of gases.
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Yogita Ingle 7 years, 11 months ago
Bees make honey from nectar, a natural food produced by plants. Honeybees process the nectar into a form that is delicious and can be stored for a long time. Small female honeybees called worker bees take on different parts of the honey business at different times in their lives.
Young worker bees are known as house bees. They have the job of building the honeycombs. These little worker bees are ready to work when they are only two weeks old. They produce wax from glands in their bodies. Then they use their feet and their mouthparts to build with the wax. Passing tiny bits of wax from bee to bee, they build the six-sided cells that make up the honeycomb. Bees work at this job for about three weeks.
Next, they move up to the job of field bees. Field bees go out to look for nectar. They find nectar in the blossoms of clover, dandelions, berry bushes, and fruit trees. To get the nectar out, they use their long, tube-like tongues and suck the nectar up as if they were using a straw. They store the nectar in their honey stomachs, separate stomachs that are used only for nectar storage. A bee's honey stomach can hold up to seventy milligrams of nectar, which is about as much as the bee itself weighs. It takes hundreds of flowers for one fill-up.
Posted by Shyam Rawat 7 years, 11 months ago
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Posted by Om Mahajan 7 years, 11 months ago
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Yogita Ingle 7 years, 11 months ago
Compost is the end product formed by the biodegradation of organic matter, such as yard waste and food waste. This is done by microorganisms, such as bacteria. Yeast too helps in the process.
But the huge dumping of waste can raise some threats to life sooner or later. To avoid this, some people practice composting. In composting, the biodegradable wastes are dumped into a pit and covered for a period. Due to the action of microbes, they will decompose and will be used as manure for cultivation purpose. This will reduce the amount of waste at landfills.
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