Which of the following resons for absence of life on the gas giants is a direct result of their distance from the sun? A. they have no soild surfaces. B. Their atmosphere have too little oxygen. C. Their gravities are too strong. D. They are too cold to surpport life.

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.