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Amar Kumar 8 years, 4 months ago
A natural indicator is a natural substance that can be used to determine the pH of another substance. Red Cabbage and grape juice are examples of natural indicators. A synthetic indicator is a man made chemical substances used to determine pH.
Posted by Rishi Kumar 8 years, 4 months ago
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Amar Kumar 8 years, 4 months ago
This is an instrument for detecting and measuring static electricity or voltage. A metal disc is connected to a narrow metal plate and a thin piece of gold leaf is fixed to the plate. The whole of this part of the electroscope is insulated from the body of the instrument. A glass front prevents air draughts but allows you to watch the behaviour of the leaf.
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Dipen Saka 8 years, 4 months ago
ammonia is an an compound of N2 and H2 whose molecular formula is NH3 . It is found in gaseous state and is colourless.
N2 + 3H2 -------------------------> 2NH3
Posted by Hardik Mehta 8 years, 4 months ago
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Skylord 69? 8 years, 4 months ago
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Shrawan Kashyap 8 years, 4 months ago
Our atmosphere is the layers of gases surrounding the earth. There are five layers, called the troposphere, stratosphere, mesosphere, thermosphere, and exosphere. The composition of the atmosphere is broken down as: 78% nitrogen.
Posted by Shivam Kumar 8 years, 4 months ago
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Preeti Dabral 8 years, 4 months ago
To deal with cyclone, it is important to follow the following points
(i) carefully listening the warnings transmitted on T.V. and radio.
(ii) moving to the safer places.
(iii) keeping an emergency kit ready.
(iv) store food in waterproof bags.
(v) not venturing into sea.
(vi) keeping all the emergency numbers.
Posted by Harsh Aggarwal 8 years, 4 months ago
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Poonam Kumari 8 years, 4 months ago
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Posted by Surender Singh 8 years, 4 months ago
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Shrawan Kashyap 8 years, 4 months ago
Heterops is a genus of beetles in the family Cerambycidae, containing the following species:
- Heterops bicolor Fisher, 1936
- Heterops bipartitus Lacordaire, 1869
- Heterops cubaecola Fisher, 1947
- Heterops dimidiatus (Chevrolat, 1838)
- Heterops duvali Fisher, 1947
- Heterops hispaniolae Fisher, 1932
- Heterops lanieri (Chevrolat, 1838)
- Heterops loreyi (Duponchel, 1837)
- Heterops robusta Cazier & Lacey, 1952
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Smruti Kalyankar 8 years, 4 months ago
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Amar Kumar 8 years, 4 months ago
Plants are the only life forms on earth which are able to prepare their own food from simple raw materials like carbon dioxide from the air, water from the soil and energy from the sunlight by a process called photosynthesis. It is important because it converts solar energy to food (sometimes stored as starch) .This process also provides us oxygen for breathing. Photosynthesis is very essential for all the animals to survive. Without plants herbivores would die, without herbivores, carnivores and omnivores would die. In one word there won’t be any life existing. Even plants are a source of oxygen , because we humans and animals need oxygen which is released by plants . imagine , no plants then no oxygen, no life.
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