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.
Sri Lankatourism initially focused on beach tourism. However, later on tourism sector managed to diversifyits products to capitalize on Sri Lankaâs rich nature and culture. During the last two decades SriLankan tourism has had many set backs mainly due to the uncertain security situation thatprevailed in the country.