Which major processes were needed for the origin of life on Earth? Abundance of oxygen and the ozone layer
Active volcanoes and very cold temperatures
Low levels of ultraviolet radiation and specific mixture of gases
Organic molecules produced from spontaneous synthesis or from meteorites

Select the best answer for the question, ly 12. which of the following behaviors is not an inherited behavior?

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics?

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.