Eighth Class Science: Chapter 7: Earth and gravity - The note discusses the matter with gravity and gravity, and the weight and mass of the object with gravitational formula, detailed discussion and important information. Important information is discussed in detail based on the chapter-based creative questionnaire and multiple choice questionnaire. If a student practices the note well, he or she will be able to produce good results in the exam by mastering the skill. The note will play an important role in the student's development as well as in the textbook. Will serve as auxiliary to poor students. This note will play a vital role in educating the nation.
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