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• what are the three sub regions of south america? what is significant about the atacama desert?
  
• what is the energy of a photon of infrared radiation with a frequency of 2.53 × 1012 hz? planck’s constant is 6.63 × 10–34 j • s. 1.68 × 1023 j 1.68 × 1047 j 1.68 × 10–21 j 1.68 × 10–45 j
  
• why did the cherokee believe the supreme court's decision in this case would protect their lands from settlement?
  
• which of the following factors would best complete the chart to the right? war and violence political upheaval new freedoms in america famine and a lack of land
  
• in many fugues, the subject in one voice is constantly accompanied in another voice by a different melodic idea called a(n) ______.
  
• select the correct answer. ms. jones brought this rock to her science class and instructed her students to explain how it was formed. which explanation is a true description of the rock? a plant fossil imprint on a rock a. leaves were trapped between layers of sediment millions of years ago, causing the imprint. b. leaves grew from the crevices of the rock from the right balance of light, nutrients, and moisture. c. the alternating imprinted design is the result of hot and cold spots when the rock cooled millions of years ago. d. a rock under high temperature and pressure pressed against the leaves, turning the leaves to stone.
  
• a result of japan’s attack on pearl harbor was the us formed a pact with indochina against japan. the us formed a pact with germany against japan. thousands of americans died, and the us declared war. thousands of japanese people died, and japan declared war.
  
• what were the goals behind the creation of the league of nations? check all that apply.
  
• gregory has a rectangular prism with a length of 10 cm, a width of 3 cm, and a height of 8 cm. what is the surface area of gregory's rectangular prism?
  
• how many atoms of k are present in 195.49 grams of k? a 3.0110 × 1024 b 6.0220 × 1024 c 1.1772 × 1026 d 4.5797 × 1027