1. Our solar system is the only place in the universe where gravity played a key part in the formation of planets.
2. Rocky planets are small, dense, and orbit relatively close to the sun, compared to the Jovian planets, which are large, less dense, and orbiting far from the sun.
3. _______
False as oxygen is the second most abundant and nitrogen is the most abundant at 78%.
If you were given distance & period of time, you would be able to calculate the speed.
Hope this helps!
Answer;
1 second
Explanation;
Two objects moving at the same speed will always stay the same distance apart. If two objects are moving at different speeds, the distance between them must change.
Therefore; if the distance will be the same and the speed is also the same then the time taken will be the same.