How does the sun contribute to physical weathering?
a.) when water is heated, it expands, which causes rocks to break.
b.) minerals in rocks heat and expand at different rates, which causes rocks to break.
c.)the sun has no effect on the physical weathering of rocks.

We know, minerals are non-uniformly distributed inside the soil, when Sunlight reaches it, rocks heat and expand at different rates depend on the nature of mineral, then it breaks

In short, Your Answer would be Option B

Hope this helps!

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.