Answer: Opportunity cost
Explanation:
Opportunity cost is basically arranging your schedule from that which is of great importance to the next, till the least important. It is understood that most of our activities are not giving same energy, especially when we understand some better than the others, this is where opportunity cost comes in, allowing you to arrange all activities from that which needs much attention to that which needs less, this is what Felix was doing that his wife needed to understand
Monsoons may cause destruction in other areas, but in certain places, they can help to fertilize the soil, hence making the farming better. I have forgotten what it is they carry, but if anyone would like to comment on that, or maybe you can try google.
Stars are made of very hot gas. This gas is mostly hydrogen and helium, which are the two lightest elements. Stars shine by burning hydrogen into helium in their cores, and later in their lives create heavier elements.
