There is strong scientific consensus that increases in global average temperatur

Question

There is strong scientific consensus that increases in global average temperature over the last 50 years are caused by human activities. Tertiary treatment at the Deer Island Sewage Treatment Plant ensures that there is no enhanced primary production at the outfall 9 miles out in Massachusetts Bay. Giant tube worms (l meter long) live at the bottom of the ocean at hydrothermal vents. Air bubbles trapped in ice can be used to determine the composition of the atmosphere thousands of years ago. Dupont could not find a replacement for freons (CFCs) for use in air conditioners. The tap water you drink at UMassBoston: Is discharged into Boston Harbor. Is not affected by the composition of the pipes. Has been filtered to ensure good bacterial water quality. Is clean due to a protected watershed. Comes from Monadnock Spring. All of the following are renewable sources of energy except Biomass burning Coal burning Geothermal power Solar power Wind power

Explanation / Answer

1) True

According to an ongoing temperature analysis conducted by scientists at NASA’s Goddard Institute for Space Studies (GISS), the average global temperature on Earth has increased by about 0.8° Celsius (1.4° Fahrenheit) since 1880. Two-thirds of the warming has occurred since 1975, at a rate of roughly 0.15-0.20°C per decade.

2) True

3) True

4) True

5)

6) Option C

7) Option B - Coal burning

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