Nre 1000 Study guides, Class notes & Summaries

As Earth slowly cooled, a. lighter elements sank to the core and heavier elements moved to the surface b. lighter elements mixed with heavier elements and sank to the core c. lighter elements mixed with heavier elements and moved to the surface d. lighter elements moved to the surface and heavier elements sank to the core e. lighter and heavier elements dispersed evenly from the core to the surface - d. lighter elements moved to the surface and heavier elements sank to the core Evidence f...

Ecosystem services - Process by which life supporting resources such as clean water, timbre, fisheries, and agricultural crops are produced. Environmental indicators - Describe the current state of an environmental ecosystem. - biological diversity - food production - surface temperature/CO2 emissions - human population - resource depletion In order to live sustainably - - environmental system smuts not be damaged beyond their ability to recover. - renewable resources must not be deple...