Question

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

Answer 1

The correct answer is B) City B because it is a wet region and the temperature fluctuates around the freezing point

City B rocks are likeliest to experience frost wedging because its temperature fluctuates between 5°C to -4°C . Fluctuation of temperature near freezing point, frost wedging takes place when water converted into ice. Water expands when it changed in ice. As a result water continually seeps into rock cracks. The frequent freezing and melting causes Freeze-thaw. Through repeated melting and freezing of water the rocks break apart.

Answer 2

Answer:

City B because it is a wet region and the temperature fluctuates around the freezing point