Answer :
Final answer:
A thin spray line is problematic because it can lead to inefficient use of pesticides and damage to non-target plants, just as aircraft need to maintain a precise speed range at high altitudes to ensure safety.
Explanation:
Flying spray in a thin line can be problematic because it increases the risk of non-target damage and inefficiency. Aircraft need to maintain a specific speed range at high altitudes due to thin air; too slow and the plane stalls, too fast and it could break up. In the context of applying pesticides, a thin line of spray increases the chance for drift and volatilization, which can result in damage to non-target plants and inefficient use of the pesticide.
This is analogous to why pilots need to be aware of airspeed at high altitudes to maintain a 'safe range'. If pilots cannot monitor their airspeed due to instrument issues or other factors, they risk falling out of this range, risking the safety of the flight. In both scenarios, the precision of the operation is crucial to avoid undesirable outcomes.
