One Earth
Atmosphere
Oceans
Ecosystems
Population Dynamics
100
The planet’s history is based on this.
What is the geological record?
100
The most significant Greenhouse Gas directly affected by anthropogenic activity.
What is Carbon Dioxide?
100
Most living organisms in the ocean, including most that live in the deepest waters, are nourished directly or indirectly by this.
What is plankton?
100
The scientific study of relationships in the natural world.
What is Ecology?
100
The number of individuals an environment can support without significant negative impacts to the given organism and its environment.
What is carrying capacity?
200
Flows of chemical substances between reservoirs in Earth’s atmosphere, hydrosphere (water bodies), and lithosphere (solid part of the Earth’s crust).
What is geochemical cycling?
200
Volcanic eruptions, respiration of organic matter in natural ecosystems, natural fires, and exchange of dissolved CO2 with the oceans are included in this.
What are Natural CO2 sources?
200
The best-known multi-annual climate cycle, caused every three to seven years by changes in atmospheric and ocean conditions over the Pacific Ocean.
What is El Niño Southern Oscillation (ENSO)?
200
This has a profound impact on ecosystems because global circulation patterns and climate zones set basic physical conditions for the organisms that inhabit a given area.
What is geography?
200
When a developing country skips the early stage of industrialization.
What is "leap-frogging"?
300
A process that removes excess carbon from the atmosphere; for example, plants and oceans.
What is a natural sink?
300
Two to three percent of the atmosphere typically consists of this.
What is water vapor?
300
A "global conveyor belt" that moves large volumes of water along a course through the Atlantic, Pacific, and Indian oceans.
What is the thermohaline circulation?
300
Broad geographic zones whose plants and animals are adapted to different climate patterns.
What is a biome?
300
****Daily Double**** This serves as a measure of the general health of the population, which depends on the satisfaction of many basic human needs such as adequate nutrition, clean water and sanitation, as well as access to medical services like vaccinations.
What is life expectancy?
400
A hypothesis that proposes the Earth was entirely covered by ice in part of the Cryogenian period of the Proterozoic eon (and perhaps at other times).
What is the “Snowball Earth” theory?
400
***** Daily Double****** Winds that move over very long distances that appear to curve.
What is the Coriolis force?
400
The deepest oceanic trench measured to date where highly specialized life forms, including fish, shrimps, sea cucumbers, and microbes, survive.
What is the Marianas Trench?
400
In the oceans, these are important controlling factors for productivity.
What are light and nutrients?
400
Important determinants of this include birth and death rates; in some countries, net migration is also important.
What is population growth?
500
When a burst of diversification occurred, with the eventual appearance of the lineages of almost all animals living today, which happened between about 570 and 530 million years ago.
What is the Cambrian Explosion?
500
Winds that meander and transport heat as they shift northward and southward?
What is the jet stream?
500
When plankton take up carbon from the atmosphere, then carry it to the deep ocean where it can remain for thousands of years.
What is the "biological pump?"
500
When contaminants collect in animal tissues because of high concentration in the trophic level.
What is bioaccumulation?
500
• Everyone who is alive one year from now will be one year older at that time than s/he is today. • Ages 15 to 49 are humans' prime childbearing years, biologically speaking . • Human mortality is relatively high among infants, children, and adults over age 60, and relatively low at other parts of the life cycle.
What are several basic truths of human demographics?
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