Answer:
It is formed on earths surface because igneous rock is formed by volcanoes and volcanoes are on land
Explanation:
Rain, thunderstorms, and sometimes hail and flash flooding
Answer:
upper mantle and lower mantle
Explanation:
I am not completely sure what this is asking but I believe it would be. That the evidence would be that the fish would be getting less oxygen hence causing noticeable breathing problems (probably best spotted by looking at the lungs).