↑Domichinica
↓Fodinichnia
↑Pascichnia
↓Cubichnia
↑Repichnia
Answer: Read Explanation
Explanation: Index fossils are useful because they tell the relative ages of the rock layers in which they occur. Geologists use particular types of organisms, such as trilobites, as index fossils.
That would be evaporation.
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Answer:
28
Explanation:
it states that the atom is neutral, meaning the number of electrons and protons are the same. so if there are 13 electrons, there are 13 protons. And the mass number is neutrons plus protons. So 13+15 is 28
A rock is definitely more dense. If you were to put a cloud in water it would float/stay above it and a rock would sink to the bottom