A: The National Weather Service explains that nimbostratus clouds, which are thick and possess dense stratus, are responsible for steady rain. They are found under 6,500 feet. Nimbostratus clouds are usually dark grey in color due to their high-moisture content.
Ecotourism is a form of tourism, or a category of vacation similar to beach, adventure, health, or cultural, while the concept of sustainability can be applied to all types of tourism.
Costa Rica was a pioneer in ecotourism and exemplifies how tourism can be a key pillar of economic development policy. Costa Rica is now the premiere destination for ecotourism, and in 2010 tourism contributed 5.5% of the countryâs GDP.