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Zero.
The current best estimate for the age of the universe is 13.75 billion years. The first trees are thought to date from the Carboniferous, approximately 359 - 299 million years ago.
As such, 400 billion years ago (roughly 1300 times older than the estimated point when trees first appeared on Earth and approximately 23 times older than the age of the universe) it is VERY unlikely that there were any trees at all.
It is difficult to determine the exact number of trees that existed 400 billion years ago as trees as we know them today evolved much later in Earth's history. However, during that time period, Earth was mostly covered by primitive plant species such as algae and mosses, rather than modern trees.
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Does the Milky Way have 400 billion stars?
Yes, the estimated number of stars in the Milky Way galaxy is around 100 billion to 400 billion, with recent research suggesting it could be towards the higher end of that range.
What is the farthest galaxy ever observed by Hubble?
The farthest galaxy ever observed by the Hubble Space Telescope is GN-z11, located about 13.4 billion light-years away. This means we are seeing the galaxy as it was just 400 million years after the Big Bang.
How long did Montserrat last for?
it was dormant for 400 years before it erupted.
How many trees cover a hectare?
The number of trees per hectare depends on the species and age of the trees, as well as forest density and management practices. In natural forests, the number of trees can range from a few hundred to several thousand per hectare. In managed forests or plantations, the number can be higher due to closer spacing.
Is it true that in the milky way theres more than 600 billion stars?
We don't know with any precision how many stars are part of the Milky Way galaxy. Case in point; scientists announced just last month that they have discovered a brown dwarf star only 10 light years away. Every time our telescopes get better, we discover more and more dim stars; 600 billion may actually be on the low end of how many stars there are in our galaxy. So I'd say that this is true.
Approximately how many trees are their on your globe?
Over 400 Billion
Approximately how many trees are there on your globe?
There are approximatley over 400 billion trees on the globe today.
How many decades have there been?
Scientists believe that about 13.7 billion years have passed since the beginning of time. 13.7 billion years is 1.37 billion decades.
What are some landplants 400 million years ago?
There were many plants 400 million years ago. Many of them were very large compared to modern plants. There were trees, cactus, and ferns, to name a few.
How many zeros are in 400 billion?
11
How long was the iron age?
400 billion years ago XD
How many billion is 400000000 million?
400 million equates to 0.4 billion.
How many years would it take to count all the stars in the Star Wars galaxy since there are 400 billion of them?
Counting one star per second, it would take approximately 12,680 years to count all 400 billion stars in the Star Wars galaxy.
How many mammals are in the world?
around 400 billion
0.4 billion is how many millions?
400 million
Did chippanzees ever have tails?
maybe 400 billion years ago, but i dought it.
How many times does sixteen go into 400 billion?
Well, 4 divided by 16 is 1/4, so 16 into 400 billion it must be 100 billion times that. That makes it 25 billion. Or if you like, 400 divided by 16 is 25, leading to the same answer.
