First test Flashcards
Biodegradable vs. Non-biodegradable
vegetal/animal matter vs. inorganic matter like plastic, glass, metal
Persistent or nonbio-degradable define:
remains dangerous for a long time
Persistent or non-bio-degradable examples
plastic-straws and tin cans
Bi-accumulative define:
accumulates as it continues through the food chain
Eco-toxic example
used engine oil
damage to the environment
Eco-toxic define:
Carcinogenic define:
causes cancer
Carcingoenic example
asbestos
Biological wastes example
human sewage
Hazardous wastes examples
solvents used in paint, chemicals in some cleaning products
Need to embrace the 3 R’s:
Reuse, recycle, reduce
_____ and ____ is required to change the tide of waste in today’s world
leadership and education
Burying waste takes ____ centuries to decompose
several
Burying wastes often creates _____ gas
methane
methane gas is _____ and does contribute to ______ effect
explosive, greenhouse
Incinerating plastics creates toxic substances called
Dioxins
Hydro power doesn’t not produce what? (2)
emissions or solid waste
Hydro power concerns:
disrupt fish migration, displace people and wildlife
Most commercial scale dam sites have been constructed in what area?
The united states
Geothermal means
“Earths Heat”
Two main types of geothermal power
high-temp geothermal heat AND low-temp geothermal heat
Yellowstone national park is an example of what heat?
high-temp geothermal heat
Low-temp geothermal energy define
thermal energy from the sun is absorbed by the upper layers f the earth surface
Naturally occurring heat is used in two main ways:
- direct use 2. generation of electricity