The table presents the average day and night temperatures in five cities. It also reveals whether a city receives substantial ra
infall (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
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.
"The most common growth media nutrient broths (liquid nutrient medium) or LB medium (Lysogeny Broth) are liquid. These are often mixed with agar and poured into Petri dishes to solidify. These agar plates provide a solid medium on which microbes may be cultured."-https://courses.lumenlearning.com/boundless-microbiology/chapter/culturing-bacteria/
