Environmental Science
The unfavourable alteration of environment due to human activities is termed as

ecological disturbance
ecological degradation
catastrophe
pollution

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Environmental Science
The order of succession in a hydrosere is

Rooted aquatic plants-> phytoplankton->Free floating stage->Reed swamp stage->Sedge Meadow stage-> wood land stage-> Climax forest
phytoplankton->Rooted aquatic plants->Free floating stage->Reed swamp stage->Sedge Meadow stage-> wood land stage-> Climax forest
Rooted aquatic plants-> phytoplankton->Free floating stage-> Sedge Meadow stage-> Reed swamp stage-> wood land stage-> Climax forest
phytoplankton->Rooted aquatic plants->Free floating stage->Reed swamp stage-> wood land stage-> Sedge Meadow stage-> Climax forest

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Environmental Science
The Gulf Coast states are more humid in summer than the coastal areas of Southern California mainly because of the:

Higher water temperature in the Gulf of Mexico
Higher air temperature in the Gulf States
Lower air temperature in Southern California
Low relative humidity of the air over the Pacific Ocean

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