13 multiple choice 2 points which process in ...
13 multiple choice 2 points which process in the rock cycle involves the breaking down of rocks into smaller pieces without changing their chemical composition? metamorphism physical weathering erosion chemical weathering 14 multiple choice 2 points in a covalent bond, electrons are transferred from one atom to another shared unequally between atoms shared equally between atoms lost entirely by one atom
Answer
# Brief Explanations:
1. Physical weathering breaks rocks into smaller pieces without altering their chemical composition. Metamorphism changes the mineralogy and texture of rocks due to heat and pressure. Erosion is the movement of rock - derived materials by natural forces. Chemical weathering changes the chemical composition of rocks.
2. In a covalent bond, electrons are shared between atoms. If shared equally, it's a non - polar covalent bond; if shared unequally, it's a polar covalent bond. Electron transfer occurs in ionic bonds.
# Answer:
13. B. Physical Weathering
14. C. Shared equally or unequally between atoms (Note: the most general correct answer among the options is that electrons are shared between atoms in a covalent bond, and sharing can be equal or unequal)