The correct answer is: Russia (although big parts of Russia are not in Eastern Europe but in Asia.
Russia has a huge territory which is generally very empty, especially in the North, where the conditions are harsh -there are only 150 million people in Russia, 10 million of which live in or near Moscow.
Erosion is largely caused by Glaciers.
The answer is Planet Z:
1. lacks axis tilt.
2. has a large size for a terrestrial planet.
3. has a slow rotation rate.closely orbits its star.
You can take a single point as a answer but though I am a Expert, I explained in detail.
Water moves place from the way the clouds have particles. Which can become rain and yeah
