The Fujita Scale describes the magnitude of hurricanes.
Answer the following statement true (T) or false (F)
False
Environmental & Atmospheric Sciences
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Since Pangaea, the continents have drifted to their current location and then stopped drifting.
a. true b. false
Environmental & Atmospheric Sciences
Which of the following has aided 20th century commercial farmers in MDCs?
A) transportation improvements B) scientific advances C) electronics D) All of these have aided commercial farmers. E) None of these have aided commercial farmers.
Environmental & Atmospheric Sciences
Why can radioactive elements be used to determine the ages of rocks?
A. Their half lives do not change over time. B. Their half lives decrease predictably over time. C. Their half lives increase predictably over time.
Environmental & Atmospheric Sciences
Which of the following minerals is not a chemical compound?
A) halite (NaCl) B) graphite (C) C) quartz (SiO2 ) D) pyrite (FeS)
Environmental & Atmospheric Sciences