What is smaller than a nanosecond?
What is smaller than a nanosecond?
A nanosecond is 10⁻⁹ second (a billionth of a second). Smaller than that: Picosecond.
How long is a millennia?
Millennium, a period of 1,000 years.
How many Zeptoseconds are in a millennium?
31536000000 second
What do you call 100000 years?
The word millennium derives from the Latin mille, thousand, and annus, year. …
What’s bigger than a millennia?
Decade: Ten (10) years. Century: One hundred (100) years. Millennium: One thousand (1,000) years.
What is the oldest era?
Paleozoic Era
What is the longest Eon?
Proterozoic
What is the longest part of Earth history?
Earth Science Chapter 14 – History of the Earth
| A | B |
|---|---|
| Precambrian Time | Longest part of Earth’s history, starting at 4.0 billion years |
| Cyanobacteria | Photosynthetic bacteria thought to be one of Earth’s earliest life-forms |
| Paleozoic Era | When organisms developed hard parts and ended with mass extinctions |
What was probably the first organism on earth?
Bacteria have been the very first organisms to live on Earth. They made their appearance 3 billion years ago in the waters of the first oceans. At first, there were only anaerobic heterotrophic bacteria (the primordial atmosphere was virtually oxygen-free).
What are the 4 eons of Earth’s history in order?
Earth’s history is characterized by four eons; in order from oldest to youngest, these are the Hadeon, Archean, Proterozoic, and Phanerozoic.
How long did it take before the first life on Earth?
The first life appeared on Earth 3,850,000,000 years ago. It was very simple, single-celled organisms. Made by bacteria, oxygen began to accumulate in the atmosphere 1,500,000,000 million years ago. The first animals evolved 700,000,000 years ago.
What were the different ages in history?
The Ages
| Age | Time | Period Name |
|---|---|---|
| Stone Age | – 3.000 BC | Neolithic |
| Bronze Age | 6.000 – 2.000 | Copper Age |
| 3.000 BC – 500 AD | Bronze Age | |
| Iron Age | 1.000 BC – now | Iron Age |