A âtestamentary trustâ is established at death, usually by including trust provisions in the decedentâs Last Will and Testament. Trusts created during the settlorâs life can be ârevocableâ â that means the entire arrangement can be terminated by the settlor.
Home Â» Tutorials Â» The Origins of Life Â» Origins of Life on Earth. Although Earth was created around 4.5 billion years ago, life began to exist not long after. Due to the huge timescales involved, there is inconclusive evidence for exact dates, but nonetheless, the eagerness of life to exist was apparent from the beginning.
If life evolved in the deep ocean, near a hydrothermal vent, it could have originated as early as 4 to 4.2 billion years ago. If, on the other hand, life originated at the surface of the planet, a common opinion is it could only have done so between 3.5 and 4 billion years ago. Lazcano and Miller (1994) suggest that the pace of molecular evolution was dictated by the rate of recirculating water through mid-ocean submarine vents.