1) Oxygen and carbon dioxide are cycled out in the ecosystem. Which of the following gases are cycled out in the environment?  a) Oxygen b) Ozone gas c) Water vapor d) Carbon dioxide 2) Plants make food by utilizing water and carbon dioxide. Which of the following substances is the origin of oxygen released by plants during photosynthesis?  a) Sugar b) Water c) Carbon dioxide d) Ribulose-2, 5-biphosphate 3) Which of the following cell parts does photosynthesis takes place? a) Ribosome b) Chloroplast c) Chlorophyll d) Mitochondrion 4) The process of photosynthesis is the light-dependent reaction followed by light-independent reaction. Which of the following is/are produced during light dependent photosynthesis?et a) ADP only b) ATP only c) NADPH only d) NADPH and ATP 5) Plants are producers because of their capability to make their own food. Which of the following help them to gather energy from the sun? a) Cuticle b) Chlorophyll c) Chloroplast d) Epidermis

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