This is because the water is already flowing towards the well from the upgradient direction, so the cone of depression doesn t need to extend as far out to obtain water, whereas the water is flowing away from the well in the downgradient direction, so the cone of depression needs to reach further to obtain water.
22.
This is because the water is already flowing towards the well from the upgradient direction, so the cone of depression doesn t need to extend as far out to obtain water, whereas the water is flowing away from the well in the downgradient direction, so the cone of depression needs to reach further to obtain water.
