Dry air will break down if the electric field exceeds 3.0 ×10^6 v/m. what amount of charge can be placed on a parallel-plate capacitor if the area of each plate is 79 cm2 ?

Why does karst topography exist in some geographic location? a. few climates have enough oxygen b. most regions have rock layers other than limestone c. in most regions, the soil is too thin d. the water is too acidic enough in most places