Hipparchus developed our present grid system of longitude and latitude. Indicate whether the statement is true or false
ANS: T
Although Eratosthenes developed the concept of longitude and latitude, Hipparchus turned this idea
into a grid system which divided the Earth's surface into 360?. Ptolemy advanced this by dividing the
degrees into minutes and seconds to assist navigators. Information can be found in the section
Understanding the Ocean Began with Voyaging for Trade and Exploration
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Why did the Great Barrier Reef in Australia grow upward, forming the largest organic structure on Earth?
A. Sea level rose. B. Elevation of the seafloor rose. C. Sea level fell.
What would the concentration of H3O+ be if the concentration of OH- was 1 × 10-1M?[H3O+] × [OH-] = Kw = 1 × 10-14
A. 1 × 10-4 B. 1 × 10-2 C. 1 × 1013 D. 1 × 10-3 E. none of the above
What do chicken noodle soup and garden soil have in common?
A) They are both examples of heterogeneous mixtures. B) They both contain elements. C) They are both examples of compounds. D) nothing
Downhill Flow of Water
Use the figure above to answer the following question(s).
What zone is indicated by the letter "B" and what characteristics does this zone have?
What will be an ideal response?