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Ask QuestionPosted by Harsh Agrawal 7 years, 1 month ago
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Meghna Thapar 6 years, 1 month ago
The inferior vena cava (or IVC) is a large vein that carries the deoxygenated blood from the lower and middle body into the right atrium of the heart. Its walls are rigid and it has valves so the blood does not flow down via gravity. It is formed by the joining of the right and the left common iliac veins, usually at the level of the fifth lumbar vertebra.
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Yogita Ingle 7 years, 1 month ago
| Concave Mirror | Convex Mirror |
| Concave means rounded or hollowed like the interior of a circle or sphere | Convex means rounded or curved like the exterior of a circle or sphere |
| It is also called as converging mirror. | It is also called as fish eye or diverging mirror. |
| The mirror coating of the concave mirror is on the outside of the spherical surface. | The mirror coating of the convex mirror is on the inside of the spherical surface. |
| In concave mirrors, the center of curvature and the reflecting surface fall on the same side of the mirror. | In convex mirrors, the center of curvature and the reflecting surface fall on the opposite side of the mirror. |
| Focus lies in front of the mirror i.e. focal length is positive. | Focus lies behind the mirror i.e. focal length is negative. |
| The image formed by a concave mirror is real, inverted and enlarged (except when the object is between P and F where the image is virtual, erect and enlarged). | The image formed by a convex mirror is virtual, erect and diminished. |
Posted by Subhadra Kumari 7 years, 1 month ago
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Lionel Messi⚽⚽???? 7 years, 1 month ago
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Stuti Sanwal 7 years, 1 month ago
Yogita Ingle 7 years, 1 month ago
Infiltration is the process by which precipitation or water soaks into subsurface soils and moves into rocks through cracks and pore spaces. As we mentioned before, the bulk of rainwater and melted snow end up infiltrated.
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Gaurav Seth 7 years, 1 month ago
Spectrum is a band of colours, as seen in a rainbow, produced by separation of the components of light by their different degrees of refraction according to wavelength.
Posted by Ayush Patyal 7 years, 1 month ago
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Meghna Thapar 6 years, 1 month ago
- The flow of electric energy is called an electric current.
- An electric circuit is a path of wires and the electric components through which electric current flows.
- The electric current is actually flow of charged particles in a conductor.
- When the positive terminal of one cell is joined with the negative terminal of the other cell then the cells are said to be joined in series.
- To make a battery the positive terminal of one cell is always kept in contact with the negative terminal of the other cell.
Posted by Harmanjit Singh 7 years, 1 month ago
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Meghna Thapar 6 years, 1 month ago
1. Milk of magnesia - Mg(OH)2
2. Baking soda - NaHCO3
3. Calamine solution - Fe2O4Zn
4. Quick lime - CaO
5. Slacked lime - Ca(OH)2
Posted by Shivani Upadhyay 7 years, 1 month ago
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Meghna Thapar 6 years, 1 month ago
Aerobic respiration – The respiration which uses oxygen is called aerobic respiration.
Example: Plants and animals break down glucose completely into carbon dioxide and water to release energy.
The end-products of anaerobic respiration in muscles of human beings is lactic acid and in yeast cells, ethanol and carbon dioxide are released. Carbon dioxide and water are released during aerobic respiration. Large amount of energy is released in aerobic respiration as compared to anaerobic respiration.
Posted by Harmanjit Singh 7 years, 1 month ago
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Posted by Harmanjit Singh 7 years, 1 month ago
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Posted by Harmanjit Singh 7 years, 1 month ago
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Posted by Harmanjit Singh 7 years, 1 month ago
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Meghna Thapar 6 years, 1 month ago
Sulphuric acid will react with calcium hydroxide(lime water) to give calcium sulphate.
Initially slightly white turbidity may be seen but then the turbidity dissolves and calcium sulphate solution is obtained.
Posted by Harmanjit Singh 7 years, 1 month ago
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Meghna Thapar 6 years, 1 month ago
Xanthium (cocklebur) is a genus of flowering plants in the sunflower tribe within the daisy family, native to the Americas and eastern Asia.
Posted by Anshul Raghav 7 years, 1 month ago
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Yogita Ingle 7 years, 1 month ago
Malleable: This means that metals can be beaten into thin sheets with a hammer. The property which allows the metals to be hammered into thin sheets is called malleability.
Posted by Ambily Vijaykymar 7 years, 1 month ago
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Yogita Ingle 7 years, 1 month ago
The image that can be obtained on to the screen is called a real image. All the real images are inverted. Real images are generated by the projectors in the cinemas, by the cameras and by the lenses in our eyes.
Posted by Dev Varshney 7 years, 1 month ago
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Gaurav Seth 7 years, 1 month ago
Treatment of wastewater involves physical, chemical, and biological processes, which remove physical, chemical and biological matter that contaminates the wastewater.
Step 1 - Wastewater is pushed into Barscreens. Large impurities like raqs, plastic bags, wood pieces, iron rods are removed in this process.
Step 2 - Wastewater is pushed into the Grit-and-Sand Removal trank. The speed of the Water is reduced to allow the Sand, Grit and other pebbles to settle down.
Step 3 - Wastewater is now taken into the sloped-in-the-middle tank. There the waste impurities are seperated and is taken into a seperate tank. It is called as a sludge and it is turned in biogas after being decomposed by anaerobic bacterias.
Step 4 - The water is now allowed for aerobic bacterias to grow for a crystal clear, pure reusable water. These are the main steps which involve in the purification of wastewater.
Posted by Ashu Bhardwaj 7 years, 1 month ago
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Posted by Sampada Satpute 7 years, 1 month ago
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Meghna Thapar 6 years, 1 month ago
Cyclone shelter is a shelter built in the cyclone prone areas, as an administrative arrangement for moving people fast to safer places.
Posted by Arjun Verma 7 years, 1 month ago
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Yashika Kumari 7 years, 1 month ago
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Niyati Niyati 7 years, 1 month ago
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