It provides a history on how plants and animals have changed over time
Answer:
The mass number tells us the number (the sum of nucleons) of protons and neutrons in the nucleus of an atom. The atomic number (also known as the proton number) is the number of protons found in the nucleus of an atom. It is traditionally represented by the symbol z
Explanation:
Answer:

Explanation:
Hello there!
In this case, according to the given information, it turns out possible for us to calculate the required density by knowing it is calculated by dividing mass over volume:

Therefore, we plug in the given kilograms and liters to obtain:

Which shows the proper scientific notation.
Regards!
It may have formed from volcanoes, which would be your hypothesis, and then you'd have to explain how the variables caused this.