1.

When rain is accompanied by a thunderstorm, the collected rain water will have a pH value

A.  slightly lower than that of rain water without thunderstorm  
B.  slightly higher than that when the thunderstorm is not there
C.  uninfluenced by occurrence of thunderstorm
D.  which depends upon the amount of dust in air
Answer» B.  slightly higher than that when the thunderstorm is not there


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