radomes.openskiesproject.org
fxm0usm fxm0usm
  • 08-02-2017
  • Biology
Answered

how many years ago did the earth cool enough for solid rocks to form ?

Verified Answer :

Anonymous Anonymous
  • 08-02-2017

As soon as the crust became cool enough not to remelt, convection driven plate ... as early as 4.2 billion years ago, only 400 million years after the Earth formed.

Answer Link

Related Questions

Why might the lung volume of an athlete singer or wind instrument musician be different from someone who does not participate in any of these activities
The industrial revolution also brough hardships suck as fourteenhour workdays to those who worked in factories and mill true or false
Regarding survival of organisms it was hypothesized that a the tallest organisms survive b the plainest organisms survive c the slowest organisms survive d the
antibiotics are effective at treating
Find the next item in the sequence 15 30 45 60
The ratio of books are 911 what percent of the reading materials are books plzzz help
Helpp plz very stuck
3 pt Which shows the dimensions of two rectangular prisms that have volumes of 320 mm3 but different surface areas A 16 mm by 5 mm by 4 mm 5 mm by 4 mm by 16 mm
All behaviors occur only after conscious thought Please select the best answer from the choices provided a True b False
Economy slides as unemployment reaches its highest level in the past 8 yearsWhat would Fed policy leaders do with respect to open market operationsbuy bondssell