Regarding Nitrous Oxide (N2O), which of the following are correct? Choose the correct answer from the options given below.

Nitrous oxide is laughing gas and a greenhouse gas, so those two statements hold.

Statement 2, laughing gas, is correct as N2O is the well-known anaesthetic laughing gas.

Statement 4, greenhouse gas, is correct since N2O strongly traps heat in the atmosphere.

Statement 1, acid rain, is wrong because nitrogen dioxide, not N2O, drives acid rain.

Statement 3, carcinogenic, is not an established property of nitrous oxide.

Statement 5, criterion air pollutant, applies to nitrogen dioxide rather than nitrous oxide.