A simple machine is an object or mechanical device that receives an input amount of work and transfers the energy to an output amount of work. For an ideal machine, the input work and output work are always the same. The six common machines are: .....

A rectangle is a solid figure  having 4 sides and 4 corners. Its two sides meet at right angles. Thus, a rectangle has 4 angles, each measuring 90 ̊ The opposite sides of a rectangle have the same .....

A cone is a shape formed by using a set of line segments or the lines which connects a common point, called the apex or vertex, to all the points of a circular base(which does not contain the apex). The .....

Human resources may be defined as the skilled resource that utilises the other resources namely the financial and the natural resources during the developmental activities. It is responsible for sustainable developmental making sure that the future .....

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An inequality compares two values, showing if one is less than, greater than, or simply not equal to another value. a ≠ b says that a is not equal to b a < b says that a is less than b a > b says that a is .....

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We know, Loss % = {(CP - SP )/CP } * 100 % or, 5 = [(1540 - SP)/1540 ] * 100 or, 5 * 1540 = 154000 - 100SP or, 7700 = 154000 - 100SP or, - 146300 = - 100SP or, SP = .....

A social problem is any condition or behaviour that has negative consequences for large numbers of people. They are generally recognized as a condition or behaviour that needs to be addressed. They are the behaviour of an individual or community .....

Time is the gap between two consequtive events . The basic unit of time is the second. There are also minutes, hours, days, weeks, months and years. We can measure time using .....

It is a Chemical Element with symbol "Ti" and Atomic Number "22". It is a Lustrous transition metal with a Silver color, low density, and high strength. Titanium is resistant to corrosion in sea water, aqua regia, and .....

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DNA is deroxyribo nucleic acid which decides the characteristics of the off springs similar to their parents..  DNA is composed of Long molecule which are coiled around each other in spiral like shape. DNA carries the genetics instructions .....

Social norms and values are the lists of rules and regulations which the society expects an individual to follow for smooth function and for maintaining harmony. Social norms and etiquette give us the feeling of personal belongings. They educate .....

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A scavenger is an organism that mostly consumes bodies of dead plants and animals. examples : vultures, ants, hyena, .....

There are many example we see in our routine life carrying light energy like lightened candle, flash light, fire, Electric bulb, kerosene lamp, stars and other luminous bodies etc. Each act as a .....

The body's outer covering, which protects against heat and light, injury, and infection is called skin. Skin regulates body temperature and stores water, fat, and vitamin D. .....