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• what caused dust storms to become even larger and more destructive in the 1930s? heavy rains hit the midwest and flooded the land. the great plains experienced a series of unseasonably cold summers. several hurricanes from the gulf of mexico swept inland across the plains states. severe droughts hit the midwest, making the soil dry and more vulnerable to winds.
  
• which statements describe life in russia in the early 1900s? check all that apply. russia lacked a modern system of transportation. russia’s economy was based on subsistence farming. russia was a leader among industrialized nations. the government of russia was an autocratic monarchy. most russian citizens belonged to a thriving upper class. the russian tsar used the secret police to enforce his will.
  
• answer the questions to determine a conditional probability. how many customers are on payment plan b? customers how many of the customers on plan b text? customers what is the probability that a randomly selected customer who is on plan b uses the phone most often to text? give the answer in fraction form.
  
• given the original statement ""if a number is negative, the additive inverse is positive,” which are true? select three options. if p = a number is negative and q = the additive inverse is positive, the original statement is p → q. if p = a number is negative and q = the additive inverse is positive, the inverse of the original statement is ~p → ~q. if p = a number is negative and q = the additive inverse is positive, the converse of the original statement is ~q → ~p. if q = a number is negative and p = the additive inverse is positive, the contrapositive of the original statement is ~p → ~q. if q = a number is negative and p = the additive inverse is positive, the converse of the original statement is q → p.
  
• why did southern senators initially block the organization of the kansas and nebraska territories? they thought the railroad that would be built there would only benefit the north. they did not think the area’s indigenous peoples should be moved to oklahoma. they worried that the area’s indigenous peoples would be relocated to the south. they were afraid the new free states would tip the balance in congress against them.
  
• what does the underlined word mean in the following sentence? me duele mucho la cabeza. foot hair eyes head
  
• according to the rational root theorem, the following are potential roots of f(x) = 6x4 + 5x3 – 33x2 – 12x + 20. negative five-halves, –2, 1, ten-thirds which is an actual root of f(x)? negative five-halves –2 1 ten-thirds
  
• which of the following groups of environmental science careers are most similar? a. hydrologist, toxicologist, environmental lawyer b. environmental physician, environmental veterinarian c. environmental activist, oceanographer, ecologist d. oceanographer, environmental journalist
  
• which organisms are a part of the largest group of mollusks? check all that apply. clams snails cuttlefish oysters slugs octopuses
  
• employers search résumés for keywords manually and electronically. please select the best answer from the choices provided t f