#earth

The most abundant gas in Earth's atmosphere is nitrogen. It makes up about 78% of the total volume of the atmosphere. Oxygen is the second most...    Read more

The Earth's atmosphere is a layer of gases surrounding our planet, held in place by gravity. It is essential for life on Earth, as it provides oxygen...    Read more

The sun is the closest star to Earth, and its distance from us varies over the course of a year due to Earth's elliptical orbit around the sun....    Read more

The most abundant gas in Earth's atmosphere is nitrogen, which makes up about 78% of the total volume. Oxygen is the second most abundant gas, making...    Read more

Chemical reactions play an important role in shaping the Earth's geological processes. There are several types of chemical reactions, including...    Read more

Geologists study the Earth's layers and structures through various methods that involve both direct and indirect observations. Some of the techniques...    Read more

The Earth experiences seasonal changes because its axis is tilted relative to the plane of its orbit around the sun. This means that different parts...    Read more

The Earth's axial tilt and orbit around the Sun are the primary drivers of seasonal variations. The axis of the Earth is tilted at an angle of...    Read more

Seasons are a result of the Earth's revolution around the Sun and its axial tilt. The Earth's axis is tilted at an angle of approximately 23.5...    Read more

The oldest known living organism on Earth is a type of bacteria called cyanobacteria or blue-green algae, which have been around for about 3.5...    Read more