Answer:
c. ammonia
Explanation:
Ammonia is a base, so it is most alkaline.
<span>ZnCO3 is an inorganic compound and it contains two parts; one is cation(positive part of compound) whereas other is anion(negative part of compound). Here, </span>

<span> is cation and </span>

is anion. Hope this helps.
Answer:A and B
Explanation:a stats final stages of life depend on its mass and stars die when they run out of fuel