hello! The inorganic part of soil forms from rocks getting weathered by chemical and physical means to form soils.
Answer:
mountain chains, earthquakes, volcanoes.
Deltas, because volcanoes are a build up of composites, glaciers are from ice melting and leaving behind composites. Deltas are when composites are washed away until there is a whole or trench.
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.
