What is Earth’s warmest year on record? A) 2008 B) 2012 C) 2016 D) 2020
The world’s seven warmest years have occurred since 2014, according to the National Oceanic and Atmospheric Administration.
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The layer of protective gases that shields the earth from harmful radiation. It is the second layer of the earth’s stratosphere that protects us from the sun’s ultraviolet radiation.
ozone layer
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What use does white vinegar have around the home? a. Natural cleanser and disinfectant b.Natural cat litter c. Natural toothpaste d. Natural paint remover
a
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Which is FALSE? a. trees breath in carbondioxide and emit oxygen b. cold winter means that the planet isn’t warming anymore c. the world population is over 7.6 billion
b
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Which country currently emits the most greenhouse gases? a.Russia b.China c.The USA d.Germany
China
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Petroleum, coal and natural gas are all ... a.Environmentally friendly b.Non-polluting c.Renewable d.Fossil fuels
fossil fuels
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How much of the world's water is available for human use? a.75% b.35% c.15% d.Less than 1%
d
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How long does it take for glass to decompose? a.100 years b.About 500 years c.1000 years d.One million years
d
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Global warming may ... a.Influence the length of seasons. b.Cause coastal flooding. c.Lead to more frequent and severe storms. d.All of the above
d
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Rainforests once covered 14% of the earth's land surface; now they cover .... a.6% b.8% c.10% d.12%
A
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Greenhouse gases are needed to keep the Earth warm enough to support life but ... is the main source of excess greenhouse gases in the atmosphere. a.Deforestation b.Factory farming c.Human use of fossil fuels d.Population
C
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Global warming is caused ... a.Only by human activity. b.Only by natural factors. c.Mainly by natural factors. d.Both by human and natural factors
D-volcanoes generate 200 million tons CO2, humans create 24 billion every year
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You burn more calories ... A. sleeping B.watching TV
sleeping
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Which country is the #1 trash-producing country in the world at 1,609 pounds per person per year. A. Turkey B. USA C. China D. Russia
