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ASMO Science 2022 - Level 1 (Grade 3-4) - School Round Question 14

ASMO Science · ASMO Science 2022 - Level 1 (Grade 3-4) - School Round

Question 14

Roads built of cement have gaps across them. The gaps are meant for
  1. expansion of the cement on hot days.
  2. creating friction to make the roads less slippery.
  3. water to flow away from the roads.
  4. making work easier and faster during construction.
  5. None of the above.