Answer:
Only early Earth was intensely bombarded by large rocks and ice from space.
Explanation:
Primitive Earth was hit several times by meteors, meteorites, rocks and ice from space. The impact of these bombings was very intense and it modified the entire structure and resources of the earth, besides harming life in general. The extinction of the dinosaurs was a result of this bombardment, for example, but there were many mass extinctions whenever one of these elements hit the planet. Another result was the modification of environmental conditions, which were very different from what we know today.
Rocks and Minerals ... Each unstable isotope has its own decay rate known as its half life. ... For example starting with 100% of a parent isotope after one half-life only 50% of the parent isotope would remain, after a second half-life half
São 5 regiões e elas são norte , nordeste, sudeste , sul dentro - oeste
US Attractions
Graceland. Graceland is one of the most visited houses in the United States, attracting over 600,000 visitors each year. ...
Pink Palace Museum. ...
Country Music Hall of Fame. ...
Great Smoky Mountains National Park. ...
Montgomery Zoo. ...
Old Alabama Town. ...
The US Space and Rocket Center. ...
Alabama Jazz Hall of Fame.