Answer:
The answer is A) more, older than.
Explanation:
It says that the rocky mountains are older and that Shenandoah National Park have undergone more erosion in the passage.
Answer:
The largest lake in Central Europe is Lake Balaton
Answer:
4 billion years
Explanation:
Scientists have found the oldest known rocks on Earth. They are 4.28 billion years old, making them 250 million years more ancient than any previously discovered rocks. Earth formed about 4.6 billion years ago from a disk of gas and dust circling the sun.