Match column 1 (definition) with column 2 (concept). Write the letter of the correct answer in the blank provided before each number. Column 1 Column 2 a. Wind 1. Peeling off of the parallel layers 2. Breaking down of rock into fragment b. Temperature 3. Physical weathering away of rocks c. Weathering 4. Involves a change in the composition of rocks that allows them to break down into pieces. d. Burrowing Animals e. Human f. Exfoliation g. Mechanical 5. An agent of weathering that causes 6. An agent of weathering that causes h. Chemical the rock to expand and contracts Stalactite j. Stalagmite 7. Animals dig deeper that causes rocks To break into pieces k. Animals 8. Break rocks in building road, construction of building, quarrying and digging 9. An icelike structure hanging from a cavern ceiling 10. An icelike structure built up in a cavern​