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Posted by Ved Patil 5 years ago (10173284)
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Gaurav Seth 5 years ago (2898529)
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Posted by Geeta Kulkarni 5 years ago (8239784)
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Meghna Thapar 5 years ago (6237)
As little as 6,000 years ago, the vast Sahara Desert was covered in grassland that received plenty of rainfall, but shifts in the world's weather patterns abruptly transformed the vegetated region into some of the driest land on Earth. They constantly move around to find new areas to graze their livestock and hunt for food. Trade routes across the Sahara Desert were an important part of the economies of Ancient Africa. Goods such as gold, salt, slaves, cloth, and ivory were transported across the desert using long trains of camels called caravans.
Posted by Rakshanda Khan 5 years ago (10217584)
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Posted by Saloni Devi 5 years ago (10213179)
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Meghna Thapar 5 years ago (6237)
The Columns and Rows properties refer to the columns and rows of a specified Range object, which can be a worksheet or a range of cells. They return a Range object referencing the rows or columns of the specified object. Columnrange charts are column charts displaying a range between a lower and higher value for each point.
Posted by Aamir Qureshi 5 years ago (10238052)
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Pratishtha Ratanpara 5 years ago (10288162)
Aishee Mistri 5 years ago (9588001)
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Meghna Thapar 5 years ago (6237)
Female mosquitoes searching for a meal of blood detect people partly by using a special olfactory receptor to home in on our sweat. Mosquitoes searching for a meal of blood use a variety of clues to track down humans, including our body heat and the carbon dioxide in our breath. Mosquitoes are attracted to the carbon dioxide humans and other animals emit. They also use their receptors and vision to pick up on other cues like body heat, perspiration and skin odor to find a potential host.
Posted by Bhima Devi Limbu 5 years ago (10230760)
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Gaurav Seth 5 years ago (2898529)
Carnot engine is a theoretical thermodynamic cycle proposed by Leonard Carnot. It gives the estimate of the maximum possible efficiency that a heat engine during the conversion process of heat into work and conversely, working between two reservoirs, can possess.
It is defined as ratio of net mechanical work done per cycle by the gas to the amount of heat energy absorbed per cycle from the source.
Posted by Urvi Yadav 5 years ago (9822867)
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Gaurav Seth 5 years ago (2898529)
Question. What is used to identify, prevent and take action against malicious programs, such as viruses and worms, by deactivating or deleting them?
Answer: Antivirus is used to identify, prevent and take action against malicious programs such as viruses and worms, by deactivating or deleting them.
Posted by Urvi Yadav 5 years ago (9822867)
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Meghna Thapar 5 years ago (6237)
File Allocation Table (FAT) is a computer file system architecture now widely used on many computer systems and most memory cards. The File Allocation Table of contents of a computer disk which tells what sectors are used for what file. The File Allocation Table ( also know as FAT, FAT16, and FAT32 ), is located in the master boot sector of a bootable disk, floppy or hard disk.
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Pragati Pagare 5 years ago (9555462)
Posted by Urvi Yadav 5 years ago (9822867)
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Meghna Thapar 5 years ago (6237)
An anti-virus software is a great tool for protecting your computer and removing potential and actual threats to your workplace integrity. Most anti-virus softwares have similar-looking interfaces, as well as easily accessed tools, so most of them will look exactly alike in the user interface side of things. Scanning your computer for viruses may take awhile, but doing it will ease your worries and secure your files.
Posted by Urvi Yadav 5 years ago (9822867)
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Bani Singh Bani Singh 5 years ago (9038862)
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Meghna Thapar 5 years ago (6237)
The push or pull of an object is considered a force. Push and pull come from the objects interacting with one another. Terms like stretch and squeeze can also be used to denote force.
In Physics, force is defined as: The push or pull on an object with mass that causes it to change its velocity.
Force is an external agent capable of changing the state of rest or motion of a particular body. It has a magnitude and a direction. The direction towards which the force is applied is known as the direction of the force and the application of force is the point where force is applied.
The Force can be measured using a spring balance. The SI unit of force is Newton(N).
Shruti ? 5 years ago (9554162)
Posted by Puram Kowshika Gayathri 5 years ago (10210827)
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Posted by Nirbhay Nath Chaurasiya 5 years ago (10237759)
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Gaurav Seth 5 years ago (2898529)
A n s w e r : perimeter of any 2D shape = sum of all the bounday
in case of triangle = leg + leg + hypotenuse
in this case = 4cm + 5cm + 6cm
ans = 15cm
Posted by Debanjan Konwar 5 years ago (7441918)
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Gaurav Seth 5 years ago (2898529)
1.Agriculture has changed life of human beings drasticaly.Early men used to live nomadic life, they were hunter-gatherers but after the development of agriculture or farming, humans started forming settlements.
2.In these settlements, people began farming, building permanent shelters like mud houses or thatched houses, making better tools and clothing.
3.The surplus production of food grains helped humans to concentrate on other activities like trade and commerce,craftsmanship,teaching,builders and administration etc.
4.They also found important uses of animals. They started taming or domesticating sheep, dogs, goats, and cow etc. They used the animals for various purposes like to carry heavy burdens over long distances,for wool,milk and security purposes etc.
5.Each of these changes made humans life more stable and comfortable.They started evolving into more civilised and advanced humans.
Posted by Kashish Agrawal 5 years ago (4468456)
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Gaurav Seth 5 years ago (2898529)
On July 7, HRD Minister Ramesh Pokhriyal announced a major CBSE syllabus reduction with 30% of the syllabus slashed for the year 2020-21 for classes 9 to 12 because of the reduction in classroom teaching time due to the Covid-19 pandemic and lockdown.
CBSE has rationalized the syllabus with the help of suggestions from NCERT and the same has been notified by a new CBSE notification as well.
Deleted syllabus of CBSE Class 12 Mathematics
Posted by Kashish Agrawal 5 years ago (4468456)
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Posted by Akshat Chamoli 5 years ago (10221951)
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Gaurav Seth 5 years ago (2898529)
Moment of inertia plays the same role as is played by mass in translatory motion. In translatory motion, mass is a measure of inertia, therefore, moment of inertia is a measure of rotational inertia in rotatory motion.
Moment of inertia is a measure of how difficult it is to rotate a particular body about a given axis. significance: Greater the mass concentrated away from the axis, greater the moment of inertia.
Posted by Harsh Preet Kaur 5 years ago (9326920)
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Gaurav Seth 5 years ago (2898529)
Lysosomes are sphere-shaped sacs filled with hydrolytic enzymes that have the capability to break down many types of biomolecules. Lysosomes are known as suicide bags of the cell because they contain lytic enzymes capable of digesting cells and unwanted materials.
Or
They are called suicidal bags because :-
◼ They release enzyme outside the cell, which help in destroying materials around the cell and this process is known as exocytosis.
◼ In damaged cell, lysosomes burst to release enzymes for digestion.
Posted by Oben Pullom 5 years ago (9079207)
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Gaurav Seth 5 years ago (2898529)
Summary
This poem by Stephen Spender gives a vivid description of a school classroom in a slum and the children in the class.
The faces of the children are dull. Their appearance shows that they are unwanted. The children have gloomy faces. Their heads hanging low in sadness due to being poor. They have diseased bodies inherited from their parents and are victims of poverty. At the dim end of the room, sits one child who has bright eyes which seem to dream - of playing outside with squirrels. He is different from the others in the dim, dark room.
The walls of the classroom are dirty. People have donated different charts and images which have been put up on them. One of them is a picture Of the great playwright Shakespeare. His head is bald and resembles the rising Sun. The next poster is of the Tyrolese valley, full of churches and flowers which symbolizes the beautiful creations of nature. Another one is a map of the World. To these children the world is not the one shown in these pictures, but it is the one they see out of the class room window. They are trapped in the slums. Their future is dim and hopeless. They have a dark future as their options in life are limited and are covered with dismay. They are far away from the bright light of knowledge.
Comprehending these pictures is beyond their abilities. They hate everyone and for them, Shakespeare is a wicked man. As no one loves them, they dislike everyone. the desire for love and acceptance forces them to do crimes like stealing. The children are so skinny that their clothes are like a skin and their skeleton is visible through them. This is due to lack of nutrition. They have worn looking glasses made of steel which are cheap, heavy and uncomfortable. Their chances of fulfilling their dreams and moving out have been further reduced by building bigger slums. Until they come out of the slums, they will never know what the world looks like.
The Government system which makes these slums is the cause for these people to live in them. The education system is such that it forces them to live in these slums. They are not given the right to dream beyond these slums. They have been restricted to the slums.
The poet requests the authorities to allow these children to go out of these slums so that the maps on the walls of the class room become a reality for them. They should be taken to the green fields rather than the dim slums.The sunny, warm sand of the beaches and the bright blue sky will instill a hunger for knowledge in their minds. Then they will absorb all of it. Then these children will become economically empowered. The poem ends with a powerful line - those who make history are the ones who shine like the Sun.
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Dhyey Patel 5 years ago (8503612)
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