What happened 1.5 billion years ago?

Answer 1

Nearly 3.4 billion years ago, there were microscopic bacteria, which are considered to be the earliest form of living organisms on earth. Because the earth's atmosphere did not have any oxygen at that time, these organisms survived by feeding on sulfur.

Answer 2

1.5 billion years ago, Earth experienced significant geological changes, with the formation of supercontinents, volcanic activity, and the development of mountain ranges. This period also marked the diversification of early eukaryotic cells and the emergence of multicellular organisms.

Answer 3

Two- Billion years ago, Earth started to form liquids like water and Oxygen. The Animals: Eukaryote cells, cells with internal organs, came into being. The plants: different lines of ages of eukaryotic cells aquired chloroplasts on at least three seperate occasions and one of the resulting cell lines went on to evolve into all green algae and green plants.

Answer 4

The Earth was mostly covered by oceans, the oldest rocks had formed, and the planet was still being bombarded by objects from space. The earliest life forms may have come into existence by this time, but would have been single celled. No life, plant or animal, would have been visible by the unaided eye. Very little atmospheric oxygen would have existed, certainly not enough to support the abundance of plant and animal life that exists today. Earth would be much hotter and no ozone shield would exist to screen out the sun's harmful radiation. Not a very inviting place.

Answer 5

Difficult to know for sure. There was nobody around to take notes, and that was even before the BETA tape format was developed.

Some things we can say with certainty; there were rainstorms, and lightning, and the Sun rose and set, and there were earthquakes and volcanoes.

Answer 6

Difficult to know for sure. The Sun was still new, the Earth was probably still mostly molten, and the Earth was being pummeled by a rain of asteroids and space rocks. There was no life on Earth yet, of course. Probably no atmosphere either.

Answer 7

5 billion years ago there was no Earth. It formed approximately 4.567 billion years ago.

Answer 8

As far as we can determine, the Earth is only four and a half billion years old, so five billion years ago, there was no Earth, just an interstellar dust cloud.

Answer 9

Earth's atmosphere did not exist; that was around the time of its formation.

Answer 10

The Earth's atmophere had started to form, however was not complete and contained posinous gases. Hope this helps