The answer is letter a. Hill terrain, hill slope, and hill elevation
Condensation
..when gas cool down into liquid statr its called condensation..
Answer: A basic solution is defined as a solution which has more hydroxide (OH-) ions than hydronium ions (H+)
Answer is: <span>the acidity of water reduce the mass of seashells.
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Balanced chemical reaction:
CaCO₃(s) + 2HCl(aq) → CaCl₂(aq) + CO₂(g) + H₂O(l).
Calcium carbonate (CaCO₃) dissolves in hydrochloric acid and gas carbon(IV) oxide is formed.
Calcium carbonate is inorganic salt insoluble in water, but soluble in acidic solutions.