Let's start from the beginning.

Millions and millions of years ago, planet Earth was absolutely crowded with volcanoes. 

As you may know, volcanoes release steam and gasses. 
As the years went by, the gasses released from volcanoes formed the atmosphere around the planet, which prevented the steam from disappearing into outer space. 
The steam eventually, in cycles, began to fall back to Earth. Viola, rain had just been "invented". 

As more and more rain fell, considering almost every surface of the planet was volcanic, the water began to build up and "flood" the planet. Many active volcanoes had now been transformed into underwater volcanoes. 

As more and more years went by, eventually, bacteria in the water slowly began to evolve, first into jelly-fish like creatures, then tadpole-like creatures, leading all the way up to large ferocious underwater reptiles, amphibians and fish. 

As the planet started to warm up, probably by methane gasses released from the prehistoric underwater creatures, the water levels on Earth began to drop again. At the same time, the active underwater volcanoes were creating new landmasses, either by lava cooling on the surface of the water or tectonic plates pushing the volcano above sea level. 

So, this, is how fossils of sea creatures ended up in high land-based mountains. 
Because millions of years ago, most of Earth was underwater until the water levels dropped or lands "grew" higher. 
The Rocky Mountains were once underwater. 

If you take a look at images of the Grand Canyon in the United States, you'll see that it resembles the deep caverns and canyons that you find at the bottom of oceans. 
That's because the Grand Canyon WAS at the bottom of an ocean.

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emmasim [6.3K]

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The correct answer to this open question is the following.

My personal American cultural experience was with the Navajo people in Arizona. My family and I went on a trip last summer and visited the zone of Sedona, Arizona, and the Grand Canyon region.

Right there, we had an experience in which we were exposed to multiple different cultures of North America because, in one of the tours we took to the Grand Canyon, there were white Americans, African Americans, Hispanic people, and the Navajo people.

This experience was very interesting and affected me in that I had the opportunity to meet very interesting people that thought very different but all of them were very good people.

Sometimes we think that if people are different from us, they are wrong. But that is not the truth. These different people from different backgrounds were classy people, and for me, it resulted very interesting to be exposed to many kinds of thinking and noticed their cultures, customs, and traditions.

One of the days, the tour guide took us to a real Navajo reservation close to the Grand Canyon. By the way, what an impressive place. I think it is a natural wonder that everybody must visit soon.

So on that day, we were introduced to a real Navajo family and they allowed us to know more about the way they live, how they raise their children, where they go to school, how they celebrate their festivities. In the afternoon, we attended a special ceremony with chants and dances, where Navajo people pay tribute to mother nature.

Boy, it was a really interesting experience

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3 years ago