Answer:
1. borders walls com harm the enviroment:
The barriers keep animals from being able to complet their migratorions.
The animals get stuck and cannot get to where they need to go.
2. Borders walls are not a deterrent:
The people who live in the land where walls are built are displaced.
A wall, no matter the height, will not top a mother determined to get her child to safety.
3. Borders walls have hiden costs:
The Walls have to be maintained
Step-by-step explanation:
Textual evidence is the term that refers to sentences that are added to a text in order to justify, buy and show that an argument is correct. You can see this in the topics shown above, where the sentences listed are the arguments and the sentences presented below them are the textual evidence. As you can see, these sentences show that the arguments must be believed because they are real, that is, the evidence shows how the borders walls are harmful to the environment, they are expensive because they need maintenance, and show that these barriers are not different orders.