input: Write a function to construct a python dictionary containing student names and marks as key-value pairs. The function should take a list of tuples where each tuple contains a student's name and their corresponding mark. Return the dictionary formed from the list of tuples.
  assert construct_student_marks([("John", 90), ("Levi", 85), ("Jill", 95), ("Sara", 75)])=={ 
      "John" : 90, 
      "Levi" : 85, 
      "Jill" : 95, 
      "Sara" : 75
  }
  assert construct_student_marks([("Alice", 88), ("Bob", 78)])=={ 
      "Alice" : 88, 
      "Bob" : 78
  }
  assert construct_student_marks([])=={}
  assert construct_student_marks([("Charlie", 92)])=={ 
      "Charlie" : 92
  }
output: def construct_student_marks(tuples_list):
      return {name: mark for name, mark in tuples_list}