0
What else can I help you with?
When did European first come to Florida?
The European first came to Florida in 4/2/1513 .
True or false the first era the precambria era lasted 4 billion year and was the longest era during that time the earth had no solid crust?
It is best to break down the question into smaller parts.1) The Precambrian was the 1st Era? (FALSE)The Precambrian was a super-eon not an era. It was the 1st of the 2 Super-Eons.The 1st named era was the Eoarchean Era (3,800 - 3600 Ma). This was during the Archean Eon (3,800 - 2,500 Ma). This was proceeded by the Hadean Eon (4,600 - 3,800) but no Eras from this time have been named. These were all in the Precambrian Super-Eon (4,600 - 542 Ma).2) The Precambrian was the longest Era? (FALSE)The longest era also occurred in the Precambrian. This was the Paleoproterozoic Era (2,500 - 1,600 Ma) which lasted 900 million years.3) The Precambrian lasted 4 billion years (TRUE)The Precambrian was the longer of the 2 super-eons. It lasted from 4,500 to 542 million years ago, some 3.96 billion years, compared to the current super-eon that has lasted a mere 542 million years.4) During the Precambrian the Earth had no solid crust (FALSE)The Earth is approximately 4,600 million years old. According to the latest theory 4,530 a Mars sized planet called theia hit the earth causing the crust to in part or totally melt (It also gave rise to the moon). Estimates suggest that over the next 30 million years the crust was able to solidify so when the Precambrian Super-Eon started the crust was solid. Certainly by 3,500 million years ago there was life. Fossilized stromatolites have been found at this time. There is no known life that can survive at the temperates necessary for molten rock so the crust must have cooled and solidified by this time.
How many years ago did the first archipelago form?
The first archipelagos began to form millions of years ago, with significant developments occurring during the Mesozoic Era, around 200 million years ago. However, specific archipelagos, such as the Hawaiian Islands, formed more recently, with the oldest islands dating back about 4 to 5 million years. The exact timeline can vary greatly depending on the specific archipelago in question.
Four score and ten years ago what does this mean?
score is a set of twenty so 4 x 20 + 10 = 90 years ago.
What is the first 6 words of the Gettysburg Address?
Lincoln's Emancipation was proclaimed great honor and contact officicated in glory.
How many years ago did the precambian era begin?
The Precambrian era began approximately 4.6 billion years ago, at the formation of the Earth, and lasted for about 4 billion years.
What era started 4.6 billion years ago?
The era that started 4.6 billion years ago is known as the Hadean era. It began with the formation of the Earth and ended around 4 billion years ago. This era was characterized by intense heat and frequent bombardment by asteroids.
E precambin What era did water appear?
Water first appeared on Earth during the Hadean Eon, which occurred around 4.6 to 4 billion years ago. This was before the Precambrian era, which began about 4 billion years ago.
What is the hadean era?
In geologic time, the Hadean is the first EONof Earth's history, from it's formation 4.57 billion years ago to about 4 billion years ago. The Hadean is not an era, which is a smaller subdivision of geologic time.
How many years did the Precambrian Era span?
The Proterozoic eon was the third eon in Earth history. It lasted from 2.5 billion years ago to 542 million years ago. Therefor, the Proterozoic was nearly 2 billion years long.
About how many years of Earth's history was PreCambrian?
Earth was formed somehwat less than 4.6 billion years ago. The Cambrian Era begins around 542 million years ago. Subtracting these times provides for a PreCambrian Era of around 4 billion years in length. This time period makes up around 87% of Earth's total history.
The longest era lasting about 4 billion years was what era?
The Precambrian Super-Eon is the informal name for the time on earth before the Cambrian Period. It lasted from 4,576 millions years ago until 542 million years ago, about 4.034 billion years.No geological era lasted as long. The longest era was the Paleoproterozic Era(2,500 - 1,600Ma) which lasted 900 million years.
How long hadean era last?
The Hadean Era lasted for approximately 500 million years, from about 4.6 to 4.0 billion years ago. It was a period of intense heat and frequent asteroid impacts on the early Earth, during which the planet was forming and undergoing significant geological processes.
How long was the prehistoric era?
Paleozoic Era ran from about 542 million years ago to 251 millions years ago.
Did the first cells appear ten billion years ago?
No. Earth itself is "only" about 4.6 billion years old. The first life may have emerged about 4 billion years ago.
When did the archean era begin?
The Archean Eon began around 4 billion years ago and lasted until about 2.5 billion years ago. It is known for the formation of the Earth's early continents, the emergence of life in the form of bacteria and archaea, and the beginnings of the atmosphere and oceans.
Why did big bang happen?
4 billion years ago
