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Ask QuestionPosted by Habeela Sabu 6 years, 1 month ago
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Akshit Kamal 6 years, 1 month ago
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Posted by Amarjeet Phogat 6 years, 1 month ago
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Sudheer Vynippatta 6 years, 1 month ago
Meghna Thapar 6 years, 1 month ago
The method of separating a mixture by using a sieve is called sieving.
Sieving is used to separate those mixtures which have components of different sizes. In this process, the mixture having components of different sizes are put in a sieve and the sieve is moved back and forth continuously. The smaller particles pass through the holes of the sieve and collect in a vessel kept below. The bigger particles remain behind in the sieve.
Posted by Tuvar Tarang 6 years, 1 month ago
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Meghna Thapar 6 years, 1 month ago
The objects which give out their own light are called luminous objects. Examples – sun, stars, burning candle, lighted torch, etc. A luminous object can be seen because the light given out by it enters our eyes.
Posted by Prajwal M Naik 6 years, 1 month ago
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Sudheer Vynippatta 6 years, 1 month ago
Posted by Akshansh Dwivedi 6 years, 1 month ago
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Sudheer Vynippatta 6 years, 1 month ago
Meghna Thapar 6 years, 1 month ago
Adaptations in cactus plant to survive in a desert:
i. The leaves are modified into spines.
ii. They have sunken stomata.
iii. The stems become fleshy and green to perform the function of photosynthesis.
Posted by Sourabh Singh 6 years, 1 month ago
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Posted by Harjinder Bajwa 6 years, 1 month ago
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Yogita Ingle 6 years, 1 month ago
|
Reticulate Venation |
Parallel Venation |
|
1. The veinlets form a network. |
1. The veins run parallel to each other within a lamina. |
|
2. It is seen in dicotyledonous plants. |
2. It is seen in monocotyledonous plants. |
Posted by Harjinder Bajwa 6 years, 1 month ago
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Harjinder Bajwa 6 years, 1 month ago
Posted by Harjinder Bajwa 6 years, 1 month ago
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Harjinder Bajwa 6 years, 1 month ago
Posted by Harjinder Bajwa 6 years, 1 month ago
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Akshit Kamal 6 years, 1 month ago
Harjinder Bajwa 6 years, 1 month ago
Posted by G. Rukmini 6 years, 1 month ago
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Neeta Zanwar 6 years, 1 month ago
Posted by G. Rukmini 6 years, 1 month ago
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Meghna Thapar 6 years, 1 month ago
Sun being not a point source of light, the shadow of aeroplane cast by the sun consists of a conical region of total darkness (umbra) flanked by regions of part-shadow (penumbra). Since the aeroplane is at a height the apex of the
umbra is unable to reach the earth, so no umbra shadow is formed.While the penumbra becomes lesser and lesser, dark as the distance goes on increasing. So on reaching the earth penumbra becomes lesser and lesser, dark as the distance goes on increasing. So on reaching the earth penumbra
looses all shades of darkness. Hence no shadow is formed on ground.
Posted by Pro Hunter J 6 years, 1 month ago
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Meghna Thapar 6 years, 1 month ago
The various sources of water are rivers, lakes, ponds, wells and springs.
Posted by Sweta Singh 6 years, 1 month ago
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Meghna Thapar 6 years, 1 month ago
Earthworm is called the friend of farmers because:
i) Earthworm helps in the aeration of the soil. It occurs when the earthworm moves through the soil and loosens it.
ii) The excreta which is released by the earthworm helps to increase the fertility of the soil.
iii) The earthworms which die or decompose and add humus to the soil which increases soil fertility.
Posted by Damodar Singh 6 years, 1 month ago
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Yogita Ingle 6 years, 1 month ago
- Living things are made up of a cell or cells.
- They obtain and use energy to survive.
- A unique ability to reproduce, ability to grow, ability to metabolize, ability to respond to stimuli, ability to adapt to the environment, ability to move and last but not the least an ability to respire.
Posted by Ananth Saiesh .V 6 years, 1 month ago
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Yogita Ingle 6 years, 1 month ago
Arrangement that provides a complete path for electricity to pass (current to flow) is known as electric circuit.
Posted by ****9057 6 years, 2 months ago
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Suhani Naik 6 years, 1 month ago
Meghna Thapar 6 years, 1 month ago
When the rain hits the ground it creates vibrations on the soil surface. This causes earthworms to come out of their burrows to the surface. Earthworms find it easier to travel across the surface of the soil when it is wet, as they need a moist environment to survive.
Posted by Sunayana Panigrahi 6 years, 2 months ago
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Himanshi Rawat 6 years, 2 months ago
Shivangani Verma 6 years, 2 months ago
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Himanshi Rawat 6 years, 2 months ago
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Posted by Diya Budania 6 years, 2 months ago
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Meghna Thapar 6 years, 1 month ago
The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. It contains high concentration of ozone (O3) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere.
Posted by Abhijeet Kumar 6 years, 2 months ago
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Posted by Aditi Gupta 6 years, 2 months ago
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Meghna Thapar 6 years, 2 months ago
When we breathe in, the ribs are lift up and the diaphragm flattens which increases the size of the chest cavity. Because of this, air is sucked into the lungs and fills the expanded alveoli. When we breathe out, the ribs flatten and the diaphragm lifts up which decreases the size of the chest cavity. Because of this, air is expelled out from the lungs.
Posted by Utsa? Barai 6 years, 2 months ago
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Meghna Thapar 6 years, 1 month ago
Any tax imposed with the aim of regulating activity in a way that benefits the environment is called green tax.
Posted by Swapnil Sharma 6 years, 2 months ago
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Meghna Thapar 6 years, 2 months ago
We prefer using plastic materials for storing a food item, water, milk, pickles, dry food etc., as plastic containers seem most convenient to use. This is due to the following properties of plastics:
- Plastic is non-reactive: Unlike iron, plastics do not corrode easily. It does not react with air, water or any chemical so it is safe to store many kinds of materials including chemicals.
- Plastic is light, strong and durable: Plastics have low density so they are lighter than metals. They also have good strength and are durable. It is because of the low price, easy availability, lightweight, corrosive resistant, the plastic containers are preferred for making household articles.
- Plastics are poor conductors: Plastics are poor conductors of heat and electricity. That is why electrical wires have plastic covering, and handles of screw drivers are made of plastic.
Posted by Swapnil Sharma 6 years, 2 months ago
- 1 answers
Meghna Thapar 6 years, 2 months ago
Plastic is very useful because of the following properties:
- Plastic is non-reactive: Unlike iron, plastics do not corrode easily. It does not react with air, water or any chemical so it is safe to store many kinds of materials including chemicals.
- Plastic is light, strong and durable: Plastics have low density so they are lighter than metals. They also have good strength and are durable. It is because of the low price, easy availability, lightweight, corrosive resistant, the plastic containers are preferred for making household articles.
- Plastics are poor conductors: Plastics are poor conductors of heat and electricity. That is why electrical wires have plastic covering, and handles of screw drivers are made of plastic.
However, the use of plastic articles is not good for the environment
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Suhani Naik 6 years, 1 month ago
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