The answer is "stays the same".
Whether what kind of process the substance undergoes, the mass will stay the same. When a substance undergoes a phase change, the weight of the substance would either increases or decreases but the mass will definitely stay the same.
Answer:
yes because there's different speices within genetic variation so there is different speices with unique animals
Explanation:
The answer is true because, the earth was a supercontinent named Pangea, which in turn the ocean was super big then and this was 250 million years ago. You are very welcome.
Scientists believe the earth is approximately 4 1/2 billion years old
9=a 10=b 11=f 12=c 13=d 14=e
