Why is the earth's overall temperature going up?
c - Greenhouse gases are trapping heat coming into our atmosphere
There are _______ of concrete per person in the world.
B - 3 tons
If we fail to act now, what will some of the consequences be?
How much electricity does it take to power the world, as of 2020?
B - 3 trillion watts
Each glass of dairy milk contributes _____ times more greenhouse gases than plant-based milk.
B - five
What comes from the Sun that causes solar cells to produce electricity?
What are the two categories of pollutants?
B - primary and secondary
What percentage of global greenhouse gases is linked to food and the agricultural industry?
C - 24%
What percentage of wild fisheries are considered to be overfished?
C - 33%
Why is it called the carbon cycle?
C - Because carbon flows from the earth to the atmosphere and back to the earth
If you drive an electric car, your carbon footprint will be determined mostly by:
D - Where you live
What is the most powerful battery in the world?
C - Two lakes
An average increase of 1.5 degrees in earth's temperature means:
B - Some places' temperature will go up much more than others
What are some characteristics of the first agricultural revolution?
A - Expansion and exploitation
What percentage of global soils are considered to be degraded?
C - 75%
What are the two main deep sources of heat in the Earth?
B - The core itself and the radioactive decay of metals
If you did 100 loads of laundry less than the average person, how much water would you save in one year?
C - 400 gallons
By 2050, how many more air conditioners will the world be using?
B - 4X
Green premium is ________
C - The cost difference between clean tech and its fossil-fuel counterpart.
What kind of energy is captured by wind turbines?
D - Kinetic
What is a net-zero approach?
B - For every molecule of carbon put in the air, another one is taken out
What percentage of the world's carbon emissions come from steel and concrete?
C - 11%
What is the main reason it's so difficult to electrify flight?
B - Cargo, passengers, and batteries are all really heavy
Which urban park has the most biodiversity in the world?
D - Forest Park, Portland
What is the Magnus effect?
C - The force that's created when air goes past a spinning object