Sorry, but that is a meaningless question.
To be a %-age, the quantity has to be part of a larger set. Here you have failed to state of what caves form a fraction, and in what way.
Yes, there are caves in many deserts around the world.
It's found around them! The vast majority of the world's caves are formed in limestone (soluble in ground-water).
somewhere around the world in caves dark caves
About 57% (percent) of the kids around the world skate. That means 43% (percent) of the kids around the world don't .
Principally terrestrial and aquatic invertebrates of (world-wide) many genera and species.
about 85.2 percent of animal abuse in the world
they live in trees
40 million around the world 70 percent in Africa
around 64%
There are caves in many parts of Ireland. For example there are the Ailwee Caves in county Clare and the Dunmore caves in county Kilkenny. Thee are mountains all around Ireland and many caves can be found in them.
Bats are the only mammals that have wings and can fly. They mostly thrive in dark caves around the world.
Yes, even world-wide famous ones! Check related links: Caves of Aggtelek Karst and Slovak Karst. Similar caves found in Buda Mountains, around the capital city Budapest, but most of them there are not open for the public.