Fact 1: Ice wedging is when ice causes rocks to crack by expanding in openings. Fact 2: Freezing water expands cracking and breaking the rocks. Given the two facts above, ice wedging is when freezing water expands and what?
Possible answers: 1). a delta 2). breaks rocks 3). closes schools 4). freezes gas 5). destroys toys 6). erosion 7). solid, liquid, gas 8). near the shoreline
Answer:
2).