Class 6 science Practice Tests
Class 6 Science Online Tests
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The MCQ: Photosynthesis increases the concentration of oxygen in air, which is necessary for all; "Photosynthesis Importance" App Download (Free) with answers living organism, fossils, birds only and animals to study online certificate courses. Solve plant photosynthesis and respiration quiz questions, download Google eBook (Free Sample) for distance learning.
MCQ 1: Photosynthesis increases the concentration of oxygen in air, which is necessary for all
MCQ 2: Glucose and oxygen combine to form carbon dioxide and water plus
MCQ 3: Photosynthesis decreases the concentration of carbon dioxide in air and other harmful wastes, this increases the purification of respiratory disease for
MCQ 4: Plant products like timber, rubber, herbs, medicines resin and oils are derived from
MCQ 5: All animals need oxygen and most of this oxygen comes from
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