Earth is the third planet from the Sun in the solar system and the only known astronomical object to support life. It is composed of a variety of elements and is characterized by its diverse environments, which include land, water, and atmosphere. The planet has a diameter of about 12,742 kilometers (7,918 miles) and is unique for its liquid water, which covers approximately 71% of its surface, primarily in the form of oceans.
Earth’s atmosphere is composed primarily of nitrogen and oxygen, which are essential for life. The planet experiences a range of climates and weather patterns, shaped by its axial tilt and orbit around the Sun. Earth has a dynamic geology, with tectonic plates that cause earthquakes and volcanic activity.
In addition to its physical characteristics, Earth is often regarded in cultural, spiritual, and philosophical contexts as a symbol of nature and the environment. It is also called “the Blue Planet” due to its appearance from space, and it plays a critical role in human history, development, and culture. Its study encompasses various scientific fields, including geology, biology, ecology, and environmental science.
Asteroid 2024 YR4 poses a 2.3% chance of colliding with Earth by December 22, 2032. The asteroid's size ranges from 40 to 100 meters, with potential to cause significant destruction.…