Question

When was the earth formed?​

Answer 1

Answer:

Diatomaceous earth is made from the fossilized remains of tiny, aquatic organisms called diatoms. Their skeletons are made of a natural substance called silica. Over a long period of time, diatoms accumulated in the sediment of rivers, streams, lakes, and oceans. Today, silica deposits are mined from these areas.

Answer 2

Explanation:

When the solar system settled into its current layout about 4.5 billion years ago.