- Earthquakes: These can cause sudden and dramatic changes to the Earth's surface, such as landslides, tsunamis, and the formation of new mountains and valleys.
- Volcanic eruptions: These can release large amounts of ash and dust into the atmosphere, which can block out sunlight and cause a cooling effect on the Earth's climate. They can also produce lava flows that can destroy large areas of land.
- Floods: These can cause extensive damage to property and infrastructure, and can also lead to the spread of disease. In some cases, floods can also create new landforms, such as deltas and floodplains.
- Droughts: These can cause widespread crop failures and famine, and can also lead to a decline in biodiversity. In some cases, droughts can also cause the ground to collapse, forming sinkholes.
- Storms: These can cause high winds, heavy rain, and snow, which can damage buildings, infrastructure, and crops. Hurricanes can also produce storm surges, which are walls of water that can inundate coastal areas.
- Meteorite impacts: These can cause craters, which can range in size from a few feet to hundreds of miles across. Some meteorite impacts have also been associated with mass extinctions, such as the one that occurred 66 million years ago and wiped out the dinosaurs.
- Continental drift: This is the slow movement of the Earth's continents over time. It is caused by the movement of the Earth's tectonic plates, which are the large pieces of rock that make up the Earth's crust. Continental drift has been responsible for the formation of many of the Earth's major mountain ranges, including the Himalayas and the Andes.