Author Question: Increases in the temperature of the earth due to the greenhouse effect over the last 50 years is ... (Read 17 times)

fox · **on:** Jul 28, 2018

Increases in the temperature of the earth due to the greenhouse effect over the last 50 years is least due to ________.
a. burning of oil by industry and utilities
b. flatulence by cows
c. addition of hot water to lakes by utilities
d. clearing land for farming
e. use of freons

Question 2

A person weighing 0.70 kN rides in an elevator that has an upward acceleration of 1.5 m/s2 . What is the magnitude of the force of the elevator floor on the person?
a. 0.11 kN
b. 0.81 kN
c. 0.70 kN
d. 0.59 kN
e. 0.64 kN