Question

aim: date: 5. landscapes will undergo the most chemical weathering if the climate is a. cool and dry b. cool and wet c. warm and dry d. warm and wet 6. in which climate would the chemical weathering of limestone occur most rapidly? a. cold and dry b. cold and humid c. warm and dry d. warm and humid 2. factor #2 - exposed surface area: • the more surface area exposed while a particle is weathering, the faster it will weather. • evidence - calculate the total surface area of each diagram shown below. o area of one side: o how many sides o how many cubes: o total surface area: o rate of weathering: • conclusion - the smaller cubes will weather (slower/faster) because

Explanation:

Step1: Answer question 5

Chemical weathering is enhanced by warm - wet conditions. Water is a key agent in chemical reactions and warmth speeds up the reaction rates.
So the answer to question 5 is D. warm and wet.

Step2: Answer question 6

Limestone undergoes chemical weathering mainly due to the action of acidic water. Warm and humid climates provide more water and higher temperatures which accelerate the chemical reactions. So the answer to question 6 is D. warm and humid.

Step3: Calculate surface - area for single cube

For a single cube with side length \(s = 1\) cm:
Area of one side: \(A_1=s^2 = 1\times1=1\) \(cm^2\)
How many sides: A cube has 6 sides.
How many cubes: 1
Total Surface Area: \(SA = 6\times1 = 6\) \(cm^2\)
Rate of Weathering: Moderate (compared to more fragmented forms)

Step4: Calculate surface - area for multiple - cube structure

Let's assume a \(2\times2\times2\) cube structure made up of smaller \(1\times1\times1\) cubes.
Area of one side of a small cube: \(A_1 = 1\) \(cm^2\)
How many sides of small cubes: Each small cube has 6 sides.
How many cubes: \(n=8\)
Total number of sides of all small cubes: \(6n = 48\)
But some sides are internal and not exposed. In a \(2\times2\times2\) cube, the total surface area of the large - cube structure is \(2\times2\times6=24\) \(cm^2\)
Rate of Weathering: Faster than single large cube as more surface area is exposed.

Step5: Conclusion

The smaller cubes will weather faster because they have a greater exposed surface area compared to a single large cube of the same total volume.

Answer:

1. D. warm and wet
2. D. warm and humid

For single cube:
Area of one side: \(1\) \(cm^2\)
How many sides: 6
How many cubes: 1
Total Surface Area: \(6\) \(cm^2\)
Rate of Weathering: Moderate
For \(2\times2\times2\) cube structure:
Area of one side of small cube: \(1\) \(cm^2\)
How many sides of small cubes: 6
How many cubes: 8
Total Surface Area: \(24\) \(cm^2\)
Rate of Weathering: Faster
Conclusion: faster