Farmers in a certain region have noticed a decrease in the variety of crops that they are able to successfully grow in the region. This has impacted the number of crops that they are able to sell to consumers. Which of the following changes has most likely caused this change in biodiversity?

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.