If I would have to make a good guess, I would choose A.
a passage for surplus water from a dam.
Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA<span>). Passed from parents to offspring, </span>DNA<span> contains the specific instructions that make each type of living creature unique.</span>
Weathering can be caused by rain,snow,heat,and as well as wind.
I would believe the correct responses would be option 1,2,4.
