A person changes his or her usual method of daily transportation to an alternative-fuel from mass transportation. By making this change, the person would have which direct impact on the environment

reduce greenhouse gas emissions

Explanation:

It is possible to reduce greenhouse gas emissions by 1-using lower-carbon fuel types, 2-by increasing the efficiency of vehicle technologies, and 3-by changing the way to travel. The promotion of clean transport methods such as cycling and walking can efficiently reduce greenhouse gas emissions in order to avoid global warming. For example, a recent study has shown that an increase of 20% cycling as a mode of transportation could reduce carbon dioxide (CO2) emissions from public urban transport by approximately 11%.

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.