That's a nonsensical question, since sunset and sunrise are relative terms, depending on your location on earth. Since the earth is constantly rotating around the sun, there is no objective "last country" where the sun sets - the sun just perpetually sets in the areas tangential to it.
The Sun appears to set because the Earth rotates, turning one side of the Earth away from the Sun for a period we call "night"
Assuming you mean "why": if the Sun appears to set, that is the result of Earth's rotation.
The rotation of the earth is what causes the sun to appear to set
no and no
last
Rotation of the Earth, with the sun going out of view.
WEST
It depends where you are on Earth.
The sun set
No, the sun does not technically set into the sea. The Earth revolves around the sun which makes the sun appear to set into the sea especially when you are watching a sunset at the beach.
The Sun is at the centre of our solar system. the Earth not only orbits the Sun - but also spins on its axis. The spinning of the earth presents a different area of the planet's surface towards the Sun - making the sun appear to rise and set.
There was a time when the sun never set on the British Empire, but now it does.