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In English-speaking countries, "trillion" usually means a million million (1012). In some other countries, it may mean a million million million (1018). Even with the first definition (the "short scale", a trillion years is much more than the age of the Universe.
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∙ 13y ago
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How old was earth when life appeared on it?
The Earth is about 4.5 billion years old. Life appeared on Earth about 3.5 billion years ago. The Earth would have been about 1 billion years old at that time.
What is the name of the first supercontinent formed 1 billion years ago?
Pangaea
How long has earth been a planet?
Until it can no longer support life? Between 1 and 1.5 billion years. Until it is enveloped by the sun, or destroyed by it? About 4 to 5 billion years.
How many years ago did large amounts of oxygen gas first appear on Earth's atmosphere?
After plants developed chlorophyll and multiplied to the point where they could "pollute" the primal atmosphere, somewhere between 1 and 2 billion years ago.
How long does it take for a coniferous forest to grow?
10 trillion years, give or take a few billion years. 10 trillion years, give or take a few billion years.
What term would mean 1 billion years?
We'd probably use the term 1 gigayear to mean 1 billion years (in the U.S.). The prefix "giga" means 1,000,000,000 or, if you prefer, 106 units of something. The gigayear is a billion years, just the the gigaHertz is a billion Hertz (or cycles per second). Also note that we use a "big" G to represent giga. A Gyear is a gigayear or a billion years.Many consider an Eon to be a billion years
What term means 1 quadrillion years?
1,000,000,000,000,000 years
What 3 letter word means 1 billion years?
it is called an eon
How many years are in 1 billion?
1 billion years = 365.25 billion days (rounded)
What year will it be in 1 billion years?
The year in 1 billion years will be 1000002016
How muchis a gigowatt?
The prefix is GIGA, not "GIGO", and it means 1 billion (U.S. term) or a milliard (U.K. term) - 10**9 in either case.
If a radioactive isotope had a half - life of 1 billion years how much of it would be left after 2 billion years?
1/4: Half would be gone after a billion years and half of that would be gone in another billion years. 1/4: Half would be gone after a billion years and half of that would be gone in another billion years. 1/4: Half would be gone after a billion years and half of that would be gone in another billion years.
If 12'o clock midnight equals 4.6 billion years ago and 1 hour equals 1 billion years how many years is 3 hours and 6 hours?
3 hours = 3 hours PAST 12 o'clock = (3 x 1 billion) - 4.6 billion = 3 billion - 4.6 billion = -1.6 billion years = 1.6 billion years ago6 hours = 6 hours PAST 12 o'clock = -1.6 billion years + (3 x 1 billion) = -1.6 billion + 3 billion = 1.4 billion years ago
How many million years are in a billion years?
There are 1000 sets of 1 million years in a billion years.
1 billion means how many lacs?
10000 lakhs = 1 billion
What is 1 billion years in months?
There are 12 months in a year, so there are 12 billion months in a billion years.
How much billion in a million?
Billion and Million relation is as follows: 1 Billion = 1000 Million It means 1 Million = 1/1000 Billion
