How is the concept of an environmental threshold or tipping point important in regards to global warming?

What will be an ideal response?


A tipping point is a level at which a critical mass has been reached that causes an event to occur, an event that may be irreversible. If humans cause the climate of the earth to warm beyond a certain level, it may be impossible to correct the situation, and the climate may be irreversibly altered for the worse.

Environmental & Atmospheric Sciences

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How much waste sent to a landfill does the EPA estimate to be reuseable?

A) 7-10% B) 10-12% C) 2-5% D) 14-16% E) 6-8%

Environmental & Atmospheric Sciences

When a large, contiguous area of habitat is reduced in area and divided into smaller, more scattered patches, the process is called ____.

A. habitat elimination B. habitat exploitation C. resource partitioning D. habitat fragmentation E. resource loss

Environmental & Atmospheric Sciences

A dry climate is defined as ________

A) one were the evaporation exceeds the precipitation B) one where the rainfall is less than 10 cm per year C) a climate where wind is the dominate form of erosion D) a climate where the temperature is over 25°C E) all of the above

Environmental & Atmospheric Sciences

Give an example of a polygon feature class that can benefit from the topology (polygon) rule of "Must not overlap with."

What will be an ideal response?

Environmental & Atmospheric Sciences