Answer:
solo te puedo ayudar con sistemas y subsistemas
Explanation:
se entiende por un sistema a un conjunto ordenado de componentes relacionados entre si, ya se trate de elementos materiales o conceptuales.
subsistema: en si, es un sistema que se ejecuta sobre otro sistema ayudandolo en sus funciones.
It helped power the trains and steam boats.
Answer:
answer may be number 4 i noo
The beach moved because of landslide. This is a natural force.
Answer:
Explanation:
His mission was to complete an agreement with the Japanese Government for the protection of shipwrecked or stranded Americans and to open one or more ports for supplies and refueling. ... As a result, Perry's treaty provided an opening that would allow future American contact and trade with Japan.
