The lower mantle is composed of magnesium, iron-bearing silicates, olvine, and pyroxene.
As compared to the rest of the children in the world, the children in Costa Rica are very literate. The correct option among all the options that are given in the question is the first option.The education system of the country of Costa Rica remained free for all the citizens since the year 1869. I hope it helps you.
Answer: Porphyry
Explanation:
This is an igneous rock that has a fine grained texture!
Hope this helps! :)
Whatever fossil is at the lowest layer is the oldest cuz the old fossils lived along time ago and when they died the fossils were buried.
Answer:
I thinks it's B
Explanation:
Because it's what dams do.
It's not D because it caused people to relocate, it's not C because that doesn't make sense.
