sandstone aquifer
sandstone aquifer
sandstone aquifer
True
A. True
Permissible exposure limits are levels of exposures mandated by:
False: if the contaminated water has been collected. True: if the contaminated water is still in the ground. It is very easy to contaminate water that is in the ground or in aquifers. It is very difficult and yes, sometimes impossible to decontaminate ground water that is still in the ground.
No. Sometimes, groundwater can run into sewage, dumps, or other places that make it polluted.
no
True
This depends on the zone: sometimes the groundwater is polluted or the rain water is acidic and contain particles collected from the atmosphere.
sometimes yes as it may have many impurities which are harmful for us.
Relatively is an adverb.