ICSE Class 8 Answered
give reason
evaporation can be desirable or un desirable
Asked by nathsantanukumar | 23 Mar, 2018, 12:30: PM
Expert Answer
Desirable changes are the changes which produce useful results and are brought about by man or nature.
Undesirable changes are the changes which produce destructuive results and are brought about by man or nature.
Evaporation is a process of converting a liquid into its vapour state, either by exposing it to air or by heating.
Prepartion of common salt from sea water by evaporation is desirable change.
Drying of lake or rivers due to high rate of evaporation can be undesirable change.
Answered by Varsha | 23 Mar, 2018, 01:08: PM
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