What constitutes a âSolâ cycle in the film âThe Martianâ. While the book uses the term, it does not explain the definition or exact length. Real-life NASA, however, does. One sol = one solar day. Mars Solar Days and 24-hr Clock Convention
Q: Index fossils are used to determine the _____ of the rock. a. age c. color b. makeup d. none of the above A: Index fossils are used to determine the age of the rock. Get an answer
These fossils are very useful for us because we can use them to date the layers of rock that they are found in. Fossils that can be used in this way are called index fossils, and rock layers with the same index fossils in them can be correlated.To be considered an index fossil, it must meet 3 criteria: 1. The fossilized organism must be easily recognizable. find the index fossil we eliminate any fossils that don't show up in each column, and fossils that appear in more than one layer per column. Can be eliminated because it shows up in two different layers in the first outcrop. Therefore we can eliminate all of these from the diagram.