Which step(s) of the greenhouse effect are being most affected by the increases in greenhouse gases, leading to an increase in heat? 1. Solar radiation enters the Earth system and is reflected and absorbed. 2. Absorbed energy is released into the atmosphere as heat. 3. Heat is absorbed by the atmosphere. 4. The atmosphere re-releases heat, warming Earth's surface and lower atmosphere.

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.