Which is given as an explanation for how the Paleozoic supercontinent ice cap melted?
A. Volcanic eruptions decreased, raising the temperature.
B. Carbon dioxide levels decreased, raising the temperature.
C. Plants dying off increased the greenhouse effect.
D. Plant life turned oxygen into carbon dioxide, increasing the
temperature.

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