STATUS 50 YEARS AGO:we used to have plenty of water to drink or to use for different purposes.
PRESENT STATUS:but we have used them for cleaning animals.so we ourselves polluted water.
HAPPENED:no sufficient water to drink.because we are constructing many
buildings,individual houses,ETC......so only the sand or mud can absorb
the water but we have constructed buildings,individual houses.
Animals ,plants and water bodies are in safe hands of environment but nowadays they are being killed in hands of us so we should protect our environment
Hope this helps u...............^_^