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.
Planet Earth is 4.567 billion years old.
Joshua trees are native to southwestern North America. They were not planted by anyone; they have been growing naturally in the region for thousands of years.
That depends on what type of plant it is. There are some trees known to be about 2,000 years old.
90 years ago
YES but it will take years and years of effort an patience. Plant more trees, be green.
Plant and animal remains sandstone and shale from my grandad(a miner deputy manager) mainly trees very rare for animals, always lowerlifeforms
It depends on the plant, some plants live one year(flowers) some live two years(carrots) and even some others(trees) live for hundreds of years.
Saturn takes 29.46 earth years to orbit the sun
Coal is formed from plant material that is subjected to high pressure and heat over millions of years. This process typically involves the burial of plant matter in sedimentary rocks and the removal of oxygen through decomposition, resulting in the formation of coal.
Ginkgo trees have been around for over 200 million years, making them some of the oldest tree species on Earth. They are often referred to as living fossils due to their ancient lineage.
forever it was on earth when the earth was made