🧪 Earth Science

Explanation: The Ring of Fire is a major area in the Pacific Ocean basin where many earthquakes and volcanic eruptions occur, containing about 90% of the world's earthquakes.

Explanation: Seasons are caused by Earth's axial tilt of 23.5°. As Earth orbits the Sun, different hemispheres receive more direct sunlight at different times of year.

Explanation: The ozone layer is located in the stratosphere, approximately 15-35 km above Earth's surface, and protects life by absorbing harmful UV radiation.

Explanation: The Richter scale (now largely replaced by the Moment Magnitude Scale) measures the magnitude or energy released by earthquakes.

Explanation: The crust is the outermost solid layer of Earth. It is 5-70 km thick and is divided into oceanic crust (thinner) and continental crust (thicker).