Ice cream date is cool

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?

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.