Answer:

Deforestation

The loss of trees and other vegetation can cause climate change, desertification, soil erosion, fewer crops, flooding, increased greenhouse gases in the atmosphere, and a host of problems for indigenous people.

Water pollution

Water pollution is the contamination of water bodies, usually as a result of human activities. 

Air Pollution

Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles.

Destruction of Coastal Resources

The activities of tourists can affect the marine ecosystem directly, through boat and anchor damage to coral reefs, and indirectly by increasing demands for cleared land for development, collection of shells for souvenirs, seafood, and mangrove poles and coral lime for construction.

Acid precipitation

Acid rain, or acid deposition, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms.

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