Final answer:
The scenario in which the root of a huge tree causes cracks in a rocky surface represents Mechanical weathering. The scenario in which part of a cliff breaks and falls due to waves represents Mechanical weathering. The scenario in which acid rain reacts with calcite present in limestone represents Chemical weathering.
Step-by-step explanation:
The scenario in which the root of a huge tree causes cracks in a rocky surface represents Mechanical weathering. The scenario in which part of a cliff breaks and falls due to waves represents Mechanical weathering. The scenario in which acid rain reacts with calcite present in limestone represents Chemical weathering.