0
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.
Still curious? Ask our experts.
Chat with our AI personalities
Judy
Devin
SteveIt 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.
Add your answer:
Earn +20 pts
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.
