You are on a spaceship to Kepler-452b, an exoplanet similar to Earth, in the hopes of finding a habitable planet. After the 1,400 light year journey, you come into orbit of this planet and discover, remarkably, that the geography is similar to the earth. Your onboard devices scan the planet’s surface, and you find active volcanoes, deep canyons carved by rivers, and mountains with many layers of rock strata. This planet has existed in the habitable zone of its star for 6 billion years, making it significantly older than the earth, and this can be seen in its extreme geography. Describe and explain the processes that occurred over time to create the geography of this planet. Relate these ideas to the evolution of species. (Use words such as: catastrophism, uniformitarianism, gradualism, genetic drift, descent with modification)