What is meant by global warming?

a.
it is the theory that water vapor increases earth's temperature through clouds.
b.
it is the theory that earth is warming due to greenhouse gas increases from human activity.
c.
it is the theory that the concentration of greenhouse gases is decreasing over time.
d.
it is the theory that the production of methane causes the greatest impact on the greenhouse effect.

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.

Answer8.0m;