Respuesta :
Answer:
C. Since there was coal burning in factories the air started to get polluted
Answer:
B.) It caused pollution in cities due to factories burning coal.
Explanation: I took the K12 test


Answer:
C. Since there was coal burning in factories the air started to get polluted
Answer:
B.) It caused pollution in cities due to factories burning coal.
Explanation: I took the K12 test