Air and Processes MCQs Quiz Worksheet PDF Download
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MCQ on Air and Processes Quiz PDF Download
MCQ: Breathing is a process that refers to inhaling and exhaling of
MCQ: Process of burning under presence of oxygen is known as
MCQ: Intake of carbon dioxide and giving out of oxygen is only process named
MCQ: In fish, respiration takes place through
MCQ: Rust is actually
- iron oxide
- hydro oxide
- nitro oxide
- none of them