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• tina is waiting at the bus stop. she sees and hears an ambulance as it approaches and passes by her. which two changes in the loudness of the siren does tina hear? the sound becomes less loud as the ambulance approaches her. the sound becomes louder as the ambulance approaches her. the loudness of the sound remains the same as long as she can see the ambulance. the sound stops when it reaches her. the sound becomes less loud as the ambulance moves away from her.
  
• which of the following statements is true about artificial selection? a. breeders can control which animals mate. b. breeders can control what mutations will appear in the offspring. c. both a and b are true. d. neither a nor b is true.
  
• which would be the best way to represent the concentration of a 1.75 m k2cro4 solution? 1.75% [k2cro4] = 1.75 m (k2cro4) k2cro4, [m]
  
• a mineral is a naturally occurring solid with a regular, repeating structure. please select the best answer from the choices provided t f
  
• select the correct answer. consider functions f and g. which expression is equal to ? a. b. c. d.
  
• how did nazi rule affect the lives of german people? select three answers. the media was censored to promote only nazi ideology. nazi propaganda was shown to children. students were encouraged to question authority and beliefs. intense nationalism and shows of patriotism were widespread. couples were encouraged to limit the size of their families. women were expected to attend university and work.
  
• what event was the direct cause of the cuban missile crisis? a the invasion of the bay of pigs b the nuclear bombing of cuba c nikita khrushchev's shoe-banging speech d fidel castro's revolution in cuba
  
• if someone you know wanted to start investing, what best practices would you recommend they follow so they can harness the power of compounding? explain your reasoning.
  
• if a cell were placed in an anaerobic environment which organelles would be unable to function
  
• think about the question carefully. then enter your answer in the box provided.