Earth is the third planet from the Sun. The closest planet to the Sun is Mercury.

Nitrogen. The percentage of nitrogen in Earth's atmosphere is equal to 78%.

Scientists believe Earth is 4.54 billion years old. By the way, the other planets of the Solar system and the Sun are also of the same age.

The Sun, the Moon and other bodies in the Solar system affect the water and land of Earth by the force of gravity. However, due to its proximity to Earth, the Moon affects tides to a greater degree.

Dinosaurs disappeared from the earth about 65 million years ago. According to the most accepted theory, the cause of the "great extinction" was the strike by the fall of an asteroid or a comet.

Pangaea. Millions of years ago, planet Earth had only one continent, which later split under the influence of the movement of Earth's crust.

Under the influence of gravitational forces. It is gravity that allows water to not evaporate. If the force of gravity were less, all water would have disappeared from Earth.

Ozone holes are formed for many reasons, but the most essential is the pollution of the natural environment by humans. The ozone layer depletion increases the flow of solar radiation, which in turn can lead to the death of plants and animals. The influence of ozone holes on humans results primarily in the spread of skin cancer. Scientists have estimated that if the concentration of ozone in the atmosphere drops by at least 1%, the number of cancer patients will increase by approximately 7,000 people per year.