Meter
Inch
I think it those
it cause global warming which heats up the atmosphere and most animals in colder areas there homes are melting because of fossil fuels?
Answer:
The correct answer is b. The oldest generally accepted fossils of large animals range in age from 565 to 550 million years old.
Explanation:
The oldest one of them all is the hematite tubes, that are dated about 3.77 billion to 4.2 billion years and it's from a yet unknown bacteria.