The students took a bowl of iron nails, plastic pieces, wood shavings, and paper pieces. the bar magnet was placed inside the bowl for some time and then taken out. several iron nails were stuck on the bar magnet. the experiment was repeated by several students using different bar magnets. based on the investigations, which of these theories would the students most likely propose

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