I wanna say A. Desert
Hope this helps!!
Answer:
relating to or determined by the origin, development, or causal antecedents of something
Explanation:
It a comet that streaks through earth atmosphere. Cause more than 90 percent of meteorites are of rock, while the reminder consist wholly or partly of iron and nickel
Answer:
The last one: dinosaur footprints preserved in mud turned to rock
Fossils have to be physical remains of an animal.
Hope this helps!