The answer to this question is B
True they are in the heart as well as the rest of your body
Through expanding, some galaxies are on a collision course with us.
<span>Ethylene is used to ripen crops so that all plants in a crop will ripen at the same time.
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8: this model is similar to a real life model because it shows what you can have in and around your house
9: the way this model can be useful is by helping show how to build your house the way you want it to be and what you would want
