This gas in the atmosphere is most influential in day to day weather changes

Water vapors

Explanation:

Water vapors can change the Earth atmosphere on daily basis. This is because of the reason that the relative proportion of water vapors in the atomosphere changes more significantly than any other gases (e.g. oxygen, carbon dioxide, ozone) whose proportion doesn't change much on daily basis. Further, water vapod can hold thermal energy and carbon particles to act as a aerosoles, which ultimately results in the rainfall. Therefore, the proportion of water vapors influences weather on daily basis whereas changes in the proportion of other gases is a slow process and is generally studied under the umbrella of climate change.

the correct answer is - ability to find a mate

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.