Question

what significant events happened throughout Earth's history?​

Answer 1

Answer:

Years ago Event

3.5 billion Unicellular life evolves. Photosynthetic bacteria begin to release oxygen into the atmosphere.

3.8 billion Replicating molecules (the precursors of DNA) form.

4.6 billion The Earth forms and is bombarded by meteorites and comets

Answer 2

Answer:

1) Earth Formation: 4.6 billion years ago

• The Earth is stated to be shaped with the aid of using a collision. This collision withinside the massive disc-formed cloud of cloth still shaped the Sun. Gravity slowly accrued this fuel line and dirt collectively into clumps that have become asteroids and small planets known as planetesimals.

2) Oldest Mineral Grain Found: 4.4 billion years ago

• In Jack Hills, Australia, rocks have been discovered that contained the oldest recognized minerals on Earth. The mineral is known as zircon.

3) First Evidence of Life: 3.7 billion years ago

• The first proof of life on Earth become discovered in graphite. It become a vintage metasedimentary rock that become discovered in Western Greenland.

4) Oldest Evidence of a Continent: 3.9 billion years ago

• Pangaea is the oldest proof of a continent. When the maga continent commenced to interrupt and separate, we knew that there have been greater continents.

5) Humans first discover the moon: forty-eight years ago

• Humans first landed on the Moon on July 20, 1969. The first human to stroll on the lunar floor become Neil Armstrong, commander of the Apollo eleven mission.

6) European rediscovery of America: 525 years ago

• Christopher Colombus become the individual credited with "discovering" America. On his voyage he delivered 3 ships, The Niña, The Pinta, and The Santa Maria. he set out for his voyage in 1942.

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