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Pi is simply defined as the ratio of circumference of a circle to its diameter. That is:  Pi = circumference/diameter   = 3.1415926535…       It is one of the constants we have in Mathematics. For the convenience of students, Pi Read More …

Sexual abuse is simply a criminal sexual activity in which the perpetrator uses force, threat or deception to commit the crime. Sexual abuse of students, especially female students is still prevalent in schools. Many principals, class teachers and subject teachers Read More …

Lightning is simply a natural electrical discharge of very short duration and high voltage between a cloud and the ground or between a cloud and another cloud or within a cloud. It is usually accompanied by a bright flash and thunder. Read More …