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Ask QuestionPosted by Jaimina Gharia 7 years, 4 months ago
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Posted by Riddhima Agarwal 7 years, 4 months ago
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Yogita Ingle 7 years, 4 months ago
Animals such as sponges and hydra do not possess any circulatory system. The water in which they live brings food and oxygen as it enter their body the water carries away waste materials and carbon dioxide as it moves out.
Posted by Aditya Prakash 7 years, 4 months ago
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Posted by Preeti Sharma 7 years, 4 months ago
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Aditya Prakash 7 years, 4 months ago
Posted by Vanah Singh 7 years, 4 months ago
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Posted by Kaavya Agarwal 7 years, 4 months ago
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Yogita Ingle 7 years, 4 months ago
Two conditions are:
- The two objects should be in direct contact.
- Temperature of the two objects should be different.
Posted by B.N Bibhor 7 years, 4 months ago
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Vishal Kumar 7 years, 4 months ago
Posted by Kaavya Agarwal 7 years, 4 months ago
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Yogita Ingle 7 years, 4 months ago
After the food is swallowed, it slides down the pharynx into the oesophagus (food pipe). The oesophagus leads from our mouth to the stomach. It is made up of muscles. These muscles gently push food down to our stomach in a wave like action called peristalsis. This movement takes place throughout the alimentary canal to push the food forward.
Posted by Kaavya Agarwal 7 years, 4 months ago
- 2 answers
Vishal Kumar 7 years, 4 months ago
Vishal Kumar 7 years, 4 months ago
Posted by Kaavya Agarwal 7 years, 4 months ago
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Yogita Ingle 7 years, 4 months ago
the balanced eqn is :
1. 2NaNO3 → 2NaNO2 + O2
2. CH4 + 2O2 → 2H2O + CO2
Posted by Kaavya Agarwal 7 years, 4 months ago
- 2 answers
Sonali Aggarwal 7 years, 4 months ago
N2 + 3H2 gives 2NH3 molecular nitrogen on reacting with hydrogen gives ammonia.
Posted by Kaavya Agarwal 7 years, 4 months ago
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Posted by Kaavya Agarwal 7 years, 4 months ago
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Posted by Kaavya Agarwal 7 years, 4 months ago
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Sonali Aggarwal 7 years, 4 months ago
Silk is a natural fibre with lightweight, breathable, hypoallergenic and has good absorbency (It can absorb up to 30 per cent of its weight in moisture).Silk is also highly lustrous, has excellent drapability and is highly resistant to mould and mildew.
Posted by Kaavya Agarwal 7 years, 4 months ago
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Posted by Kaavya Agarwal 7 years, 4 months ago
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Yogita Ingle 7 years, 4 months ago
Silk is a naturally made fibre by the Mulberry worm and hence contains protein, just like hair, which also contains a lot of protein. On burning hair, we get the smell of burning protein. Similarly when we burn silk we get the smell of burning protein, which we know as the smell of burning hair.
Posted by Kaavya Agarwal 7 years, 4 months ago
- 1 answers
Yogita Ingle 7 years, 4 months ago
Land breeze blows during the night from land to sea and the land becomes cooler faster than the sea. The air above the sea becomes less dense (i.e. warmer) and rises. The cooler air from the land moves in to take its place. Sea breeze blows during the day and the land heats up faster than the sea. The air on land becomes less dense (i.e.warmer) and rises so the cooler air over the sea which is denser(cooler) flows in to take the place of the warm air, causing a sea breeze.
Posted by Kaavya Agarwal 7 years, 4 months ago
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Sonali Aggarwal 7 years, 4 months ago
The definition of incubation is the process of keeping something at the right temperature and under the right conditions so it can develop
Posted by Kaavya Agarwal 7 years, 4 months ago
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Posted by Piyush Gupta 7 years, 4 months ago
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Posted by Manpreet Singh 7 years, 4 months ago
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Posted by Syeda Roshni 7 years, 4 months ago
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Posted by Pooja Jain 7 years, 4 months ago
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Sonali Aggarwal 7 years, 4 months ago
Posted by Akshit Thakur Singh 5 years, 9 months ago
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Yogita Ingle 7 years, 4 months ago
Different layers of soil are called soil horizons and the cross sectional arrangement of these layers in soil is called soil profile.
Each layers of soil have different texture and color, different depth and varying chemical composition.
Layers of soil can be seen while digging a well or when the foundation of a building is laid.
Humus is the rotting dead matter present in the soil which makes the soil fertile.
Posted by Abhishek Mishra 7 years, 4 months ago
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Yogita Ingle 7 years, 4 months ago
- Their white fur gets camouflaged against the white background of snow protecting it from predators and also helps them catch their prey.
- Two thick layers of fur act as an insulator protecting them from the surrounding harsh climate.
- The polar bear carries out physical activities like swimming in order to keep warm
- In order to avoid getting overheated they move slowly and rest often.
- A strong sense of smell helps them in catching a prey
- Can remain submerged underwater closing its nostrils
Posted by Ronak Chandak 7 years, 4 months ago
- 1 answers
Meghna Thapar 5 years, 10 months ago
Terrace farming is a method of farming that consists of different "steps" or terraces that were developed in various places around the world.
Posted by Ronak Chandak 7 years, 4 months ago
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Rishi Raj 7 years, 4 months ago
3Thank You