Chapter 18: Class 7 Science Exam Tests
Class 7 Science MCQs - Chapter 18
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MCQ 161: As compared to low density polythene, the high density polythene can withstand
MCQ 162: The particles of gases are
MCQ 163: The color of 'nitrogen' gas is
MCQ 164: After sometime the particles of solids start to move far apart, when
MCQ 165: Chemical changes are also known as
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