What type of feedback maintains stability in a system; i.e., what type of feedback keeps a system functioning properly?
The increase in meltponds in Arctic regions is an example of
positive feedback, because the melt ponds absorb more solar energy than the ice did.
The most extreme northern and southern parallels to experience perpendicular rays of the Sun at local noon are located at
23.5° north and south
The meridian opposite of Earth's prime meridian (0° longitude) is called
the International Date Line.
Which of the following most accurately characterizes the goal of geography?
Understanding why a particular place has unique characteristics.
Which of the following is the most strongly supported by experimental and observational evidence?
According to the text, the three inorganic Earth realms are the
hydrosphere, lithosphere, and atmosphere.
Outputs generated by a system that encourage or discourage system operation are called __________.
positive and negative feedback
A __________ system such as Earth allows for inputs and outputs of energy, with virtually no inputs and outputs of physical matter.
A __________ is a simplified, idealized representation of the real world used to help us understand complex systems.
A computer-based processing tool for gathering, manipulating, and analyzing geographic information is called a __________.
geographic information system
Numerous devastating wildfires have occurred over the last decade. As the fires burned, they dried the wet shrubs and green wood around the fire, thus providing more fuel for combustion. The greater the fire, the greater the availability of fuel becomes, and thus more fire is possible. This pathway is an example of __________.
Imagine leaving San Francisco, California, at 9 a.m. on a Monday and flying to New York, New York. Assuming your flight takes five hours, the local time when you arrive will be ________.
5 p.m., Monday
A person travelling westbound across the International Date Line must subtract one day from the calendar in order to keep an accurate record of the date.