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.
Ecotourism is a late 20th-century neologism compounded from eco-and tourism. According to the Oxford English Dictionary, ecotour was first recorded in 1973 and ecotourism, probably after ecotour , in 1982. 1  ecotour, n. ...