Which of the following best defines the pharynx? an external opening of the body that takes in air a small bone in the wall of the nasal cavity an airway leading from the nose to the trachea an air-filled cavity in the head

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.

Which are reasons cells undergo cell division?