Fossils became common starting with the Cambrian.
Answer the following statement true (T) or false (F)
True
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A sample of iron weighs more after it rusts because
A. it has expanded into a greater volume. B. of the additional oxygen it contains. C. rust contains twice as many iron atoms. D. Wrong. Iron actually weighs less after it rusts.
The richest fishing areas of the world are mostly located ________.
A. in waters where coral reefs are common B. in waters where equatorial upwelling takes place C. in waters where coastal upwelling takes place D. in waters around Antarctica and in the Arctic E. in open waters far from coasts
________ ________ is when more than one crop can be produced from the same plot of land within the year
Fill in the blank(s) with correct word
A ________ uses standardized symbols and patterns to represent rock types and geologic structures.
A. geologic column B. geologic map C. Google Maps D. topographic map E. correlation map