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Class 7 Science Practice Test: MCQs for Exam Prep
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The MCQ: Respiration is a; "Chemical Changes" App Download [Free] with answers: physical process, chemical process, biological process, and temporary process to study online certificate courses. Solve Physical and Chemical Changes Quiz Questions, download Google eBook (Free Sample) for distance learning.
Respiration is a
During chemical reaction, energy is
In chemical reactions, energy is absorbed or released in the form of
Chemical reactions are
One or more new substances are formed due to
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