D) 68.6 m/s
Final Velocity = Initial Velocity - (Gravity)(Time)
Final Velocity = 0 m/s - (-9.8 m/s)(7s)
Final velocity = 68.6 m/s
Answer:
5.1 billion metric tons of carbon is emitted by U.S as compared to other countries which emits about 32.5 billion metric tons of carbon.
Explanation:
U.S emits about 5.1 billion metric tons of carbon in the atmosphere which contribute in air pollution also helps in rising the temperature of the earth atmosphere because carbondioxide is a green house gas which increases the earth temperature. The main reason of high amount of carbon emission is the high number of industries and more fossil fuels is burnt in the engines of vehicles.
CO2 traps heat in the atmosphere of the earth which leads to global warming because of the green house effect
