One town is 20 feet above sea level. Another town is 10 feet below sea level. Are these opposite quantities whose sum is 0? Respond 1 if these quantities are opposites. Respond 2 if these quantities are not opposites.
2
To determine whether these quantities are opposites, we need to take into account their directions and magnitudes.
In this case, we have one town that is 20 feet above sea level, which means its elevation is positive (+20 feet). The other town is 10 feet below sea level, which means its elevation is negative (-10 feet).
Since one value is positive and the other is negative, indicating opposite directions, we can conclude that these quantities are indeed opposites.
Therefore, the correct response is 1.