Which two events are likely effects of wind on the Yardang Landforms? A. Glacier movement over the landforms
B. Physical weathering from abrasion
C. Chemical weathering by water
D. Erosion wearing down the landforms

an adaptation is a change or process by which an organism takes to be better suited for its environment. for example; migration is a behavioral adaptation, this is needed because birds are not built to last extremely cold climates. there are different adaptations because there are different species needing to adjust to different things, bears don't migrate; they hibernate.

idk what the options are but

these is a strong electrostatic attraction between the ions hence a lot of energy is needed to overcome this attraction

this is why the boiling points are so high