Question

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Answer 1

Answer:

1. When the magnesium metal burns it reacts with oxygen found in the air to form Magnesium Oxide. ... After it burns, it forms a white powder of the magnesium oxide. Magnesium gives up two electrons to oxygen atoms to form this powdery product. This is an exothermic reaction

in one word=Magnesium Oxide

1. When collenchyma cells contain chloroplast, they can perform photosynthesis i.e. assimilation of food by plants. ... Parenchymatous cells secrete sap. Sap is the watery fluid that circulates through a plant, carrying food and other substances to the various tissues.

in one word=assimilation of food

Explanation:

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