Increased levels of oxygen in the atmosphere due to photosynthesis caused rates of weathering to which aided in the formation of
1. A. Increase
B. Decrease
C. Remain constant

2. A. Chloroplast
B. Roots
C. Soil

1. A:Increase
2. C: Soil

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.