1 Gigapascal: One gigapascal (GPa) is equal to exactly one billion pascals. A pascal (Pa) is the SI unit for pressure define as one newton per square meter. 1 GPa = 1,000,000,000 Pa.
The answer is the first one
They have microscopes to see small objects such as atoms and molecules
Yes because the stigma rises above the gas I think that’s is it
