(i) We travel to learn, whether its leaming a new language or learning about an area's history travel allows us to learn so many different things.
(ii) We travel to escape. Travel provides a momentary break from the humdrum of our daily lives.
(iii) We travel to discover.
(iv) We travel to make new friends.
(v) We travel to experience.

(i) Adopt : From wild animals to wild places, there's an option for everyone.
(ii) Volunteer : If you don't have money to give, donate your time.
(iii) Visit zoos, aquariums, national parks and wildlife refuges are all home to wild animals.
(iv) Donate
(v) Speak up
(vi) Buy responsibility
(vii) Pitch in
(viii) Recycle
(ix) Restore
(x) Join

(i) Sightseeing is considered to be one of the most important activities a tourist chooses to take part on reaching a destination.
(ii) Sightseeing gives the tourist a chance to know a destination and experience it.
(iii) Some people like adventures and to escape their normal monotonous life.
(iv) So some people like sightseeing so much.

Environmental Impact of Tourism:
The quality of the environment is essential for tourism. The tourism industry created several positive and negative impacts on the environment.
a) Positive Impacts:
(i) Direct financial Contributions
(ii) Contributions to government revenues
(iii) Improved environmental management and planning
(iv) Increasing environmental awareness
(v) Protection and reservation of environment
b) Negative Impacts:
1. Depletion of Natural Resources
(i) Water resources
(ii) Local resources
(iii) Land degradation
2. Pollution
(i) Air and Noise Pollution
(ii) Solid Waste and Littering
(iii) Sewage
3. Destruction and Alteration of Eco system
(i) air
(ii) water
(iii) soil

(i) Mountains and rivers of Tamil Nadu combined together created many endearing waterfalls.
(ii) Waterfalls in Tamil Nadu with its inspiring natural wonders attracts many tourists. A trek amidst thick green trees, steep hills and a bath in the gushing water is most rejuvenating.
(iii) Here is the list of famous water falls of Tamil Nadu.