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Ask QuestionPosted by Riya Mittal 6 years ago
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Posted by Lalit Chonkria 6 years ago
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Tec Om 6 years ago
Yogita Ingle 6 years ago
Tooth decay, whichis also called dental cavities or dental caries, is the destruction of outer surface(enamel) of a tooth. Decay results from the action of bacteria that live in plaque, whichis a stick, withis film formed by a protein in saliva (mucin)and sugary substances in the mouth. The plaque bacteria sticking to tooth enamel use to the sugar and starch from food particles in the mouth to produce acid.
Posted by Mayur Kharche 6 years ago
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Yogita Ingle 6 years ago
Molecular phylogeny is how the molecular structures are used for gaining data or information about the evolutionary relationship of an organism.
One of the most common approaches, in this case, is how homologous genetic sequences are compared by using a sequence alignment process.
It helps to identify a similarity which will cover T-Coffee and Clustal W. Mitochondrial DNA data is used by molecular phylogeny for building a “relationship tree” which shows the entire evolution of different organisms.
Posted by Rina Kumari 6 years ago
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Yogita Ingle 6 years ago
- Deposits of solid salts are found in several parts of the earth. These deposits of large crystals are often brown due to impurities. This is called rock salt.
- Beds of rock salt were formed when seas of bygone ages dried up. Rock salt is mined like coal.
Shital Singh 6 years ago
Posted by Rajani Singh 6 years ago
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Sam@ Shukla 6 years ago
Tec Om 6 years ago
Yogita Ingle 6 years ago
- Depletion in the ozone layer of the atmosphere is called ozone depletion.
- The ozone layer or the ozone shield called the ozonosphere is present in the stratosphere at an altitude of 23–25 km over the equator and at a slightly lower altitude of 11–16 km over the poles.
- The ozone layer functions as a shield against strong UV radiations and protects the Earth from these harmful radiations.
Debarghya Maity 6 years ago
Posted by Prince Gupta 6 years ago
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Sambhav Maheshwari 6 years ago
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R Sharma 6 years ago
Aadya Singh ? 6 years ago
Posted by Hemanth Prabhakar 6 years ago
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Posted by Divyani Bhati 6 years ago
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Yogita Ingle 6 years ago
Resistance is directly proportional to the potential difference across the terminals of a circuit. In series, the potential difference is greater, thus offering more resistance. Whereas in the parallel circuit, the potential difference is distributed, thus, in each series less potential difference is observed. That is why lesser resistance is offered by the conductor.
Posted by Kehar Pundir Pundir 6 years ago
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Sambhav Maheshwari 6 years ago
Vishal Tiwari 6 years ago
Alok Goutam 6 years ago
Harsh Roy 6 years ago
Mr..A..D..21♥️.. (Dr. .......❣️) 6 years ago
Posted by Ketan Pandey 6 years ago
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Posted by Rahul Sharma 6 years ago
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Posted by Rahul Sharma 6 years ago
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Yogita Ingle 6 years ago
A biodegradable material can be defined as a material which can be decomposed by b bacteria or other natural organisms and not be adding to pollution.
A Non-Biodegradable material can be defined as a kind of substance which cannot be broken down by natural organisms and acts as a source of pollution.
Posted by Divyang Parmar 6 years ago
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Posted by Annu Chourasia 6 years ago
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Yogita Ingle 6 years ago
Insulin is a hormone secreted by the beta cells of Islets of Langerhans in the pancreas.
It regulates the level of glucose in the body. The excess glucose of the body is converted into glycogen and stored in the liver and muscles for future use.
Garena With Ram 6 years ago
Garena With Ram 6 years ago
Posted by Tanish Chimaniya 6 years ago
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Yogita Ingle 6 years ago
Prevention from Corrosion
Following methods can be used to prevent corrosion:
- Galvanisation
Method to protect steel and iron articles from rusting by coating them with a thin layer of zinc.
- Alloying
Homogeneous mixture of two or more metals, or a metal and a non-metal to change the properties of the pure state metals and protect them from rust.
- For instance, Iron is used widely for different purposes but it is never used in pure state. It is due to the fact that pure iron is very soft and stretches in hot state. But mixing with small amount of carbon (about 0.05%) makes it strong and tough. Mixing nickel and chromium with iron gives stainless steel, which is hard and does not rust.
Posted by Rekha Devi 6 years ago
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Posted by Rekha Devi 6 years ago
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Meghna Thapar 5 years, 10 months ago
The given structure shows Hexene having six carbon atoms and a double bond at C-2.
Posted by Gurbaj Singh 6 years ago
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Yogita Ingle 6 years ago
The thumb in right hand rule indicates the direction of current in the straight conductor held by curled fingers, whereas the thumb in Fleming's left-hand rule gives the direction of force experienced by current carrying conductor placed in an external magnetic field.
Posted by Gurbaj Singh 6 years ago
- 6 answers
Yogita Ingle 6 years ago
SI unit of magnetic field is tesla (T). So, one tesla is that magnetic field in which a charge of one coulomb moving with a velocity of 1 m/s perpendicular to the magnetic field experiences a force of one newton.
Posted by Akhilesh Senthil 6 years ago
- 1 answers
Yogita Ingle 6 years ago
As we pass from one trophic level to the next, only 10% of energy is transferred from the first trophic level to the next. This is because a lot of energy is lost to the surroundings and rest is utilised by the organism.
We can understand this better using an example.
When green plants are eaten by primary consumers, lot of energy is lost as heat to the environment. Some energy is used by the consumer into doing work and digestion whereas rest is used for growth and reproduction. About 10% of the eaten food is turned into its body and made available to the next level of consumers. So the actual energy passing to the next trophic level is only 10%.
Grass -> Grasshopper -> Frog -> snake -> hawk
Posted by Subhangi Sahoo 6 years ago
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Posted by Khushar Shukla 6 years ago
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