Explain the relationship between the existence of natural reserves and the increase of tourism percentage ?

More than any other field of activity, tourism depends on environment. Consequently, the environmental issues, among which destruction of biodiversity, pollution, global warming, waste increase, natural resources depletion, affect tourism as much as other global issues, like the economic crisis or the terrorism.

Explanation:

- "a nonrestrictive clause functions as a modifier to a noun (that is an object, person or concept). these clauses can be described by the following three options: it is set off by comas, it contains a subject and a verbs and it adds nonessential information to the sentence.

for example, in "here is bill gates, who confounded microsoft software company" we can identify "who confounded microsoft software company" as a nonrestrictive clause modifying the noun bill gates. this clause can be describes as a nonrestrictive clause because it is separated by a comma, it adds nonessential information to identify who bill gates is and it must contain both a subject (who) and a verb (confounded)."