Analyse d'une image

Sujet du devoir

Bonjour.
Pour la rentrée lundi prochain, je dois faire une analyse sur un document ( ci-jointe ). La présentation du document, la description, l'analyse ainsi que la conclusion. J'aimerais bien que l'on me corrige si ce n'est que les fautes.

Où j'en suis dans mon devoir

Présentation du document:
This document is a picture. It is entitled "Save polar bears'. This picture deals with the global warming, the climate changes.

Description:
I can see a polar bear sitting on the groud and bear hand saying stop. The ground is filthy, there are papers on the ground. I can see a sentence means the global warmig, the disappearance of rare species ( la disparition des rares espèces ), and so it should choose a car producs less gas ( et donc il faut choisir une voiture qui produit moins de gaz ) it's a preventive measure.

Analyse:
Polar bear numbers are diminishing. This is due in part to global warming but also because the earth is polluted : cars which send out a lot of gas, when there is a traffic-jam, paper is not recycled and to throw into the street. Polar bears can be designated "homeless" because they breathe an unbreathable air and deforestation: to destroy their territory.

Conclusion:
We should use a bike instead of a car, or buy a car with little gas emission, recycled paper, we thrown't paper on the ground etc...

Merci à vous !