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Ask QuestionPosted by Tanishka Mishra 5 years, 2 months ago
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Posted by Anika Kanade 5 years, 2 months ago
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Harsh Bhati 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Balanced forces will cause no change in the speed of an object.
- Balanced forces acting on an object in opposite directions and equal in strength, as shown in the arrows below, do not cause a change in the speed of a moving object.
- Objects that are not moving will not start moving if acted on by balanced forces.
For example, in arm wrestling where there is no winner, the force exerted by each person is equal, but they are pushing in opposite directions. The resulting force (net force) is zero.
Unbalanced forces are not equal, and they always cause the motion of an object to change the speed and/or direction that it is moving.
- When two unbalanced forces are exerted in opposite directions, their combined force is equal to the difference between the two forces.
- The magnitude and direction of the net force affects the resulting motion
Posted by Sreedevi K 5 years, 2 months ago
- 3 answers
Yash Gupta 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Teflon is a special kind of plastic on which oil and water do not stick and because of this property teflon is used for non-stick coating on cookwares for preparing non-stick cookwares.
Teflon is a registered trademark of the Chemours company (formerly DuPont) which it uses for its range of fluoropolymers, the best known of which is polytetrafluoroethylene.
Samriddhi Tiwari 5 years, 2 months ago
Posted by Sniawmi Shadap 5 years, 2 months ago
- 4 answers
Anika Kanade 5 years, 2 months ago
Posted by Abdul Jalal 5 years, 2 months ago
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Harsh Bhati 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Causes of deforestation:
- Forests are cleared for accommodating expanding urban areas and for fulfilling their ever-increasing requirements.
- Forests are destroyed to clear land for crops and cattle grazing.
- Trees are cut down to be used for firewood.
Consequences of deforestation:
- Soil erosion
- Loss of biodiversity
- Floods and droughts
- Climate change due to global warming
- Disruption of water cycle
Posted by Sniawmi Shadap 5 years, 2 months ago
- 3 answers
Samriddhi Tiwari 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
“Polyethylene terephthalate is a condensation polymer of ethylene glycol and terephthalic acid.” The by-product of the reaction to create this compound is water so it is an example of condensation or step-growth polymerization.
Polyethylene terephthalate which is also abbreviated as PET / PETE is mainly used to manufacture the packaging material for food products such as fruit and drinks containers. It is lightweight, transparent and also available in some colour. It is a member of the ester family so also called as polyester. It is a recyclable thermoplastic polymer with good strength, ductility, stiffness and hardness, therefore, can be processed through vacuum forming, injection moulding, compression moulding and blow moulding.
Posted by Pranay Kansotia 5 years, 2 months ago
- 2 answers
Eshwari Nagaraj 5 years, 2 months ago
Posted by Pranay Kansotia 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
A sperm's tail is whip like i.e. very long and slender. This structure helps to propel the sperm forward in a snake like motion through the energy produced by the 'midpiece'. Otherwise all of the sperms would move laterally or in repetitive circles, thus making it impossible for any of them to enter the egg, hence a baby being born.
Posted by Avhi Singh 5 years, 2 months ago
- 3 answers
Ayush Joshi 5 years, 2 months ago
Akansha Roy 5 years, 2 months ago
Gaurav Seth 5 years, 2 months ago
Earthing is the process of connecting the exposed metal parts of an electrical circuit to the ground
Usually an electric appliance such as a heater, an iron box, etc. are fitted with all the three wires namely live, neutral and earth. The earth wire is connected to the metallic body of the appliance. This is done to avoid accidental shock. Suppose due to some defect, the insulation of the live wire inside an electric iron is burnt then the live wire may touch the metallic body of the iron.
When the iron box is in use, the metallic body will also be increased to 110V. If we accidentally come in contact with such a metallic body we are sure to get an electric shock. If the earth wire is properly connected to the metallic body it protects us from an electric shock.
Posted by Diya V Asokan 5 years, 2 months ago
- 2 answers
Yogita Ingle 5 years, 2 months ago
A pathogen is simply defined as a tiny living organism that is a carrier of diseases in a host. Pathogens need a host body for surviving and when it enters a host, it avoids the immune responses of the host. Instead, the pathogen utilizes the host body’s resources to replicate before exiting and spreading to a new host.
Posted by Ojas Kanwar 5 years, 2 months ago
- 1 answers
Gaurav Seth 5 years, 2 months ago
Amanita phalloides
Amanita phalloides accounts for the majority of fatal mushroom poisonings worldwide. Mushroom poisoning refers to harmful effects from ingestion of toxic substances present in a mushroom. These symptoms can vary from slight gastrointestinal discomfort to death in about 10 days.
Posted by Sniawmi Shadap 5 years, 2 months ago
- 2 answers
Samriddhi Tiwari 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Plastics are non-corrosive in nature, they do not react even if they come in contact with strong chemicals. For example, the cleaning chemicals that we use at home are stored in plastic bottles, instead of metal containers.
Posted by Anil Kumar Sahotra 5 years, 2 months ago
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Samriddhi Tiwari 5 years, 2 months ago
Dungavath Bhavana 5 years, 2 months ago
Posted by Sniawmi Shadap 5 years, 2 months ago
- 2 answers
Yogita Ingle 5 years, 2 months ago
The term polymer id derived from two greek words POLY meaning many and MER meaning units. Therefore polymer refers to combination of repeating units. Cotton is a natural polymer known as cellulose which is composed of large number of glucose units. Other examples of natural polymers includes silk, wool, cellulose, DNA and proteins. Some of the synthetic polymers are nylon, Teflon polyester, polyethylene etc..
Posted by Nibir Mahanta 5 years, 2 months ago
- 1 answers
Yogita Ingle 5 years, 2 months ago
Plastic, polymeric material that has the capability of being molded or shaped, usually by the application of heat and pressure. This property of plasticity, often found in combination with other special properties such as low density, low electrical conductivity, transparency, and toughness, allows plastics to be made into a great variety of products. These include tough and lightweight beverage bottles made of polyethylene terephthalate (PET), flexible garden hoses made of polyvinyl chloride (PVC), insulating food containers made of foamed polystyrene, and shatterproof windows made of polymethyl methacrylate.
Posted by Nibir Mahanta 5 years, 2 months ago
- 1 answers
Yogita Ingle 5 years, 2 months ago
Farmers take this huge responsibility of cultivation of crops to provide food to the entire population.
Various tasks performed by farmers for crop production are termed as Agricultural practices. Following activities form a part of Agricultural practices:
- Preparation of soil
- Sowing
- Adding manure and fertilizers
- Irrigation
- Protecting from weeds
- Harvesting
- Storage
Posted by Nibir Mahanta 5 years, 2 months ago
- 1 answers
Yogita Ingle 5 years, 2 months ago
Agricultural implements are tools which are required to carry out agricultural practices. There are a number of agricultural implements used in today’s farming activities. In general, these implements are of five major types.
Posted by Nibir Mahanta 5 years, 2 months ago
- 1 answers
Yogita Ingle 5 years, 2 months ago
Preparation of soil: Soil is prepared before sowing the seeds. The soil is loosened to increase the absorption of water and manures. Loosening of soil particles adds humus and nutrients in the soil that increases crop yields. Tilling or loosening the soil is done by ploughs which are pulled by a pair of bulls. Tractor driven cultivators are also used to loosen the soil.
Posted by Piyush Kumar Panda 5 years, 2 months ago
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Yogita Ingle 5 years, 2 months ago
I will prefer to put the fertilizer, manure which will be necessary to for the land to be fit for cultivation.
Then based on the season, I would start cultivation on the land.
Cultivation of Kharif or Rabi crop shall depend on the existing season existing.
Before sowing seeds, the land must be made weed free from the grasses and other weeds roots then it must be watered properly.
The land must be ploughed thoroughly so as the layers of soil must be mixed so that the soil will be rich
Posted by Bibin Binoy 5 years, 2 months ago
- 3 answers
Bhanu Balaji Kuruba 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
A very thin thread-like strand from which cloth is made is called fibre.
Fabric is produced by weaving or knitting long ,twisted threads called yarn made from fibres
Posted by Vednath Jogi 5 years, 2 months ago
- 2 answers
Posted by Ananya Singh 5 years, 2 months ago
- 3 answers
Samriddhi Tiwari 5 years, 2 months ago
Yogita Ingle 5 years, 2 months ago
Plastics which do not get deformed or softened on heating when mold once, are called thermosetting plastics. Bakelite and melamine are the examples of thermosetting plastics.
Posted by Mahi Bhawsar 5 years, 2 months ago
- 2 answers
Yogita Ingle 5 years, 2 months ago
Let us take 5 beakers.
- In beaker A Zn being more reactive than copper replaces copper from the solution of copper sulphate and forms zinc sulphate.
CuSO4 + Zn --> ZnSO4 + Cu
- In beaker B iron being more reactive than copper replaces it from its solution and forms iron sulphate.
CuSO4 + Fe --> FeSO4 + Cu
- In beaker C there would be no reaction as less reactive metal (copper) cannot displace more reactive metal (zinc) from its solution.
- In beaker D there would be no reaction as less reactive metal (copper) cannot displace more reactive metal (iron) from its solution.
- In beaker E there would be no reaction as less reactive metal (iron) cannot displace more reactive metal (zinc) from its solution.
Posted by Vgh Ggb 5 years, 2 months ago
- 4 answers
Yogita Ingle 5 years, 2 months ago
Farmers take this huge responsibility of cultivation of crops to provide food to the entire population.
Various tasks performed by farmers for crop production are termed as Agricultural practices. Following activities form a part of Agricultural practices:
- Preparation of soil
- Sowing
- Adding manure and fertilizers
- Irrigation
- Protecting from weeds
- Harvesting
- Storage
Anna Maria 5 years, 2 months ago
Dinesh Soni I'M Dinesh Soni 5 years, 2 months ago
Posted by Yadav .K 5 years, 2 months ago
- 5 answers
Yogita Ingle 5 years, 2 months ago
Bacteria, protozoa and fungi act as decomposers. These decomposers break down organic matter present in the bodies of dead plants and animals into simple substances and mix them in the soil.
Posted by Arpit H 5 years, 2 months ago
- 2 answers
Gaurav Seth 5 years, 2 months ago
A proton is one of three main particles that make up the atom. The other two particles are the neutron and electron. Protons are found in the nucleus of the atom. This is a tiny, dense region at the center of the atom. Protons have a positive electrical charge of one (+1) and a mass of 1 atomic mass unit (amu), which is about 1.67 × 10-27 kilograms. Together with neutrons, they make up virtually all of the mass of an atom.
Posted by Suruchi Kumari 5 years, 2 months ago
- 2 answers
Ronit Chahar 5 years, 2 months ago
Gaurav Seth 5 years, 2 months ago
Antibiotics are antimicrobial drugs obtained from other organisms (such as moulds, fungus and some soil bacteria) to combat harmful microorganisms. However, they are not very useful against certain microbes such as viruses.
Antibiotics are produced on a large scale by the fermentation process. This is a chemical process which is induced by the microorganisms in a large tank. A large tank contains the growth medium that provides the nutrition for the microorganism’s growth. Optimization of temperature, pH levels, oxygen and nutrient parameter in the fermentation tank is very crucial to producing antibiotics. After the completion of antibiotics production, they are extracted and purified through multiple physical processes. Finally, the purified antibiotics are converted into crystal form.
Posted by Prashant Chhotu 5 years, 2 months ago
- 1 answers
Anna Maria 5 years, 2 months ago
Posted by M M 5 years, 2 months ago
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Posted by Akshay Kumar 5 years, 2 months ago
- 3 answers
Mansi Chourasiya 5 years, 2 months ago
Mansi Chourasiya 5 years, 2 months ago
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Tanishka Mishra 5 years, 1 month ago
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