Section 1 1) About what percent of the world energy is supplied by fossil (2pts) fuel? 60 20 40 O 80 2) Increased CO2 makes the oceans (2pts) alkaline acidic none of the above O neutral 3) based on chapter section 4.1: Which of the following is true (2pts) Increased prosperity decreases energy usage. O Spain and Italy have declining population sizes. The world population is projected to increase throughout the 21st century. the climate is getting cooler 4) The earth emits which kind of radiation that is trapped by (2 pts ) CO2? microwave infrared O ultraviolet radiowave 5) what generates the most CO2 among the following 4 choices compare to each (2pts) other O transport industry agriculture deforestation 6) From powerpoint slide 14 over the years in the 21st century (rate is related to steepness of the (2pts) curve) O temperature has been decreasing but the rate of increase has gone up O temperature has been increasing and the rate of increase has gone up O temperature has been increasing but the rate of increase has gone down temperature has been decreasing and the rate of increase has gone down