Why is it that on one hand coal is found in plenty, yet is is scarce, while a rotten fruit is are but not scarce ?

Why is it that on one hand coal is found in plenty, yet is is scarce,

1.	Why is it that on one hand coal is found in plenty, yet is is scarce, while a rotten fruit is are but not scarce ?
Answer» Solution :Coal is SCARCE because its demand is greater than its SUPPLY. On the other HAND, a rotten FRUIT is not scarce because there is no demand for rotten fruit.