Which of the following is the best example of a way human lifestyles affect environmental systems? Using aerosol sprays causes acid rain by increasing ozone (O3) in the atmosphere Agriculture causes water pollution when fertilizers and pesticides flow into lakes and rivers Burning fossil fuels causes air pollution by decreasing water vapor in the atmosphere Using radioactive materials causes ground pollution when chlorofluorocarbons (CFCs) seep into the ground

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water