What are the basic structural units that form the tropical coral reefs?

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

What terms describes being out of water after being submerged

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?