toxic pesticide runoff into streams and rivers
sediment pollution in waterways due to erosion
cultural eutrophication
the recharging of aquifers
the desertification of marginal lands like the savannah and chaparral
Andrew Smith
Given that all of the above have been observed it like saying "which is least likely to kill you ... a bullet through the head, a bullet through your heart, removal of your lungs or slashing your femoral artery". ALL of the effects listed have been demonstrably observed. If you take the point on recharging aquifers, the clearing of trees increases the rate of flow of water so more runs off, less enters the ground so there is less recharging of aquifers at the same time as more water is being pumped from those same aquifers.
Desertification happens because there is less evaporation from trees and there is an increase of drying from the effects of wind and sun. Hence reduced local rainfall. The other points should be quite obvious.
Anonymous
So I guess thinking about it just a little is too hard is it.
Agriculture is not likely to recharge aquifers.
Now you need to figure out why.
Nemo S
Silver Bullet in the air full of bullets fired from machine gun...
OH I had to look this one up sounded familiar SOOO....
Cultural Eutrophication occurs when human water pollution speeds up the aging process by introducing sewage, detergents, fertilizers, and other nutrient sources into the ecosystem.
TROLLING are we ????
N.Shadows