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Ask QuestionPosted by Habeela Sabu 6 years ago
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Akshit Kamal 6 years ago
Sudheer Vynippatta 6 years ago
Posted by Amarjeet Phogat 6 years ago
- 2 answers
Sudheer Vynippatta 6 years ago
Meghna Thapar 6 years 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 ago
- 2 answers
Meghna Thapar 6 years 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 ago
- 3 answers
Sudheer Vynippatta 6 years ago
Posted by Akshansh Dwivedi 6 years ago
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Sudheer Vynippatta 6 years ago
Meghna Thapar 6 years 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 ago
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Posted by Dev Panwar 6 years ago
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Posted by Harjinder Bajwa 6 years ago
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Yogita Ingle 6 years 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 ago
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Harjinder Bajwa 6 years ago
Posted by Harjinder Bajwa 6 years ago
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Harjinder Bajwa 6 years ago
Posted by Harjinder Bajwa 6 years ago
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Akshit Kamal 6 years ago
Harjinder Bajwa 6 years ago
Posted by G. Rukmini 6 years ago
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Neeta Zanwar 6 years ago
Posted by G. Rukmini 6 years ago
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Meghna Thapar 6 years 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 ago
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Meghna Thapar 6 years ago
The various sources of water are rivers, lakes, ponds, wells and springs.
Posted by Sweta Singh 6 years ago
- 1 answers
Meghna Thapar 6 years 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 ago
- 1 answers
Yogita Ingle 6 years 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 ago
- 1 answers
Yogita Ingle 6 years ago
Arrangement that provides a complete path for electricity to pass (current to flow) is known as electric circuit.
Posted by ****9057 6 years ago
- 2 answers
Suhani Naik 6 years ago
Meghna Thapar 6 years 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 ago
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Posted by Anj Guru Magic 6 years ago
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Posted by Nec Roorkee 6 years ago
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Shivangani Verma 6 years ago
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Posted by Eswari Murugeasan 6 years ago
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Posted by Diya Budania 6 years ago
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Meghna Thapar 6 years 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 ago
- 2 answers
Posted by Aditi Gupta 6 years ago
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Meghna Thapar 6 years 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 ago
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Meghna Thapar 6 years 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 ago
- 1 answers
Meghna Thapar 6 years 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 ago
- 1 answers
Meghna Thapar 6 years 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 ago
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