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What does the earth’s magnetic field do?
Protects living beings and particles of the solar wind which is harmful to life
What does the earth’s atmosphere have which is different from every other atmosphere?
Gaseous oxygen, indispensable for the cellular respiration of most organisms
What is the Earth’s axis?
The imaginary line that connects the North and South Pole
How much is the Earth’s axis tilted by?
23.5 degrees
How does the does the Earth’s tilt affect
The solar rays reach the Earth differently (perpendicularly in tropical zones and inclined at the poles)
What is the average surface temperature of the Earth?
15 degrees Celsius
What allows water to exist on Earth and why is it important?
The distance from the Sun allows Earth to have a relatively mild temperature, this allows the water cycle to happen and forms ecosystems that depend on it
What is the name of the large naturally occurring Satellite that causes tides on Earth?
The Moon
How is Earth’s geological activity manifested?
In phenomena such as earthquakes, volcanic eruptions, uplift of landforms and erosion.
Although the Earth resembles an elipsoidal (sphere flattened at the poles) what is the correct terminology for its shape?
Geoid, this is due to its irregularities
What is the difference between rotation and revolution?
Rotation is the movement around its axis and a revolution is how long it takes the Earth to rotate around the Sun once
What direction does the Earth rotate viewed from the North Pole ?
Counterclockwise (West to Es
Duration of one complete turn of the Earth
23 hours 56 minutes and 4.1 seconds
What does the tilt of the Earth affect?
The seasons and duration of the day
