Exam 1
First Earth Day
What is April 22nd, 1970
This layer of the atmosphere is closest to the Earth's surface.
What is the troposphere?
This oxygenated Earth.
What is cyanobacteria?
This is roughly when agriculture began.
What is 10,000 years ago?
This type of energy is stored
What is Potential Energy?
Number of U.N. Sustainable Development Goals
What is 17?
The ozone layer protects life on Earth by blocking these.
What is UV (ultraviolet) radiation?
This failed due to excess microbial activity, reduced sunlight, and CO₂ reacting with concrete.
What is biosphere 2?
Agricultural irrigation accounts for this percentage of global water usage?
What is 70%?
This is the total amount of land, water, and resources needed for a person's lifestyle
What is ecological footprint?
When human demand exceeds Earth’s regenerative capacity
What is ecological overshoot?
This pressure system brings clear skies
What is high pressure?
This type of feedback system amplifies environmental change.
What is positive feedback?
This law contends with emergency cleanup of contaminated sites
What is CERCLA?
This is something you can do to make a positive environmental impact in your community.
What is VOTE!
She wrote Silent Spring
Who is Rachel Carson?
This gas makes up the largest percentage of the Earth's atmosphere
What is Nitrogen gas?
The phenomena results from warm water extending warm Pacific water and altering temporal climates.
What is El Nino?
The is roughly the amount of food wasted each year.
Current day CO2 exceeds
What is 420ppm?
This law created the EPA
What is NEPA?
A global agreement to protect endangered species from over-exploitation through international trade
What is CITES?
This biogeochemical cycle is not naturally found in the atmosphere.
What is the phosphorus cycle?
Sea-level rise results from
What is melting ice and thermal expansion?
This refers to the hidden water used in the production of goods and services that are traded internationally
What is embedded water?