Answer:
That when there were American troops near their territory the Mexican troops shot at them since Mexico claimed that the Nueces River wascthe Northeastern border(US) while the US said that the Rio Grande was their border so war broke out
a
Explanation:
the answer is a.seasoning
you need to break all of this down
its to many questions in one post
well they proboly had to clear cut the forest so the enviorment changed alot
