coffee beans is a seed of coffea plant and source for coffee
Plant has such a developed structure to protect they have cell wall which give it rigidity and structure and also have cellulose which provide strength
B cytoplasm passes light threw the eye
C. Digestion of food
The answer is C because the rest of the answer choices are all physical reactions. In your stomach, food is chemically broken down by different substances.
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Nuclear reactors use hydrogen and they are an up and coming energy source.
There are also hydrogen fuel cells.
