2. hydrangea plants have flowers that turn blue when in acidic soil and pink when in basic soil.
fertilizers have a compound called ammonium ( after adding fertilizer to soil, a bacterium
converts ammonium to nitrate. during this process 3h+ are released into the soil. what do fertilizers
do to the ph of soil?

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.