Eratosthenes experiment : Put a staff to the sun, measure its shadow when the sun is at its highest point, deduce the angle of the solar rays compared with the vertical staff, then exchange your results with another class under another latitude. Then...
SSC CGL Re Exam Answer Key | Upsc IAS prelims Expected Cut off Marks and Answer key 2014
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Shopeyard.com is a website that offers online education materials for various exams and courses in India. You can find books, magazines, printed materials, and PDF materials on topics such as literature, fiction, national level exams, Telangana state...