HEY SHAWTYS PLS HELP I GIVE BRAINLIEST :0

pls help me answer as many questions as you can

Which layer will become saturated first when rain falls?

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.

Math focus 4. calculate a map has index contours at 250 m, 500 m, and 750 m. what is the contour interval?