Critical Thinking Homework

I need help on this homwework.

This is the link where you can find the story and answer the following 5 questions.

The Right of the Nonhuman World by Mary Anne Warren

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CB4QFjAA&url=http%3A%2F%2Fphil230.weebly.com%2Fuploads%2F3%2F1%2F7%2F9%2F3179736%2Fthe_rights_of_the_nonhuman_world_-_warren.pdf&ei=RQDkVKWeG4iegwS4y4BA&usg=AFQjCNFvCWYH2NiVeX8YIVmEc8-lF61UPg

then answer these 5 Questions

1. Why do sentient nonhuman animals have certain basic moral rights?

2. How does the right to liberty differ between human beings and animals? the right to life?

3. Why should we assign strong moral rights to :nonparadigm:human beings, such as infants and the incurably senile?

4. Why is it plausible that nonsentient natural entities such as mountains and valley have some sort of intrinsic value? Why is it preferable to speak of their intrinsic value rather than of their moral rights?

5. How do the perspectives of "land-ethic: enviromentalists and of animals liberations complement each other?