Small numbers and i chemical formula tell how many items are present

This aquarium exhibits biotic and abiotic factors in an aquatic environment. one of the abiotic factors is

When new rock is added to an oceanic ridge, the magnetized strips on either side of the ridge are evidence of sea-floor spreading. this is because the rocks on the two sides of the ridge o are equal in width and in polarity are polar opposites oare magnetized vary in width but are equal in polarity

Will give ! ! widentify the advantages and disadvantages of renewable and nonrenewable energy resources.