Earth has existed for more than 4 billion years, but plants have not always been around. At first, the Earth’s surface was mostly bare rock and dry soil, an environment not conducive to plant growth. Over time, however, that began… Read More
Earth’s tallest mountain above sea level, Mount Everest, continues to get taller each year. The erosion of rock and sediment caused by nearby rivers is believed to be the cause of the mountain’s continuous growth. Over the past 89,000 years,… Read More
