Answer: Maria ES muy alta
Explanation:
when directed toward another person or object, the verb "ser" is used in the form of 'es'. If maria is very tall, the translation, using the verb SER would be "Maria es muy alta."
El camino Inca because the sentences says the indigenous cultural route (la ruta indigena cultural) is a road that the ancient indians "los incas" occupy to move from one to one place to another.
Los osos polares son más peligrosos porque piden correr fácilmente más rápido que un humano, haciendo más daño con su garra.