Exam 57: The Biosphere and Human Impacts

A mountain range along the coast of a continent is located perpendicular to the prevailing sea breeze.Which one of the following describes an area where the rain shadow is located?

In a temperate zone lake,what should the temperature profile be immediately after the fall overturn?

Prairie is another name for a

Researchers in Alaska were interested in increasing the sockeye salmon (Oncorhynchus nerka)population in three coastal lakes.To accomplish this,the ponds were treated with fertilizers.As a result,zooplankton biomass increased between 40% and 700% in the three lakes.The substantial growth in zooplankton would suggest that prior to these experiments,these lakes were ________.

Which statement best describes the relationship between elevation and latitude?

Which of the following statements about the effects of deforestation on terrestrial ecosystems are true? Check all that apply.

Which two countries are both likely to have prevailing winds blowing from west to east?

As the global concentration of carbon dioxide increases,there is great potential for direct impact on the world's

Periodic disturbances of the Pacific currents that cause global weather changes are given the name

Most of the ultraviolet radiation reaching the upper atmosphere is absorbed by

The great deserts and associated arid areas of the world mostly lie along the western sides of the continents at about

If you plot mean annual precipitation against mean annual temperature and look at the distribution of major biomes relative to these two variables,which biome would be in the central region of the graph?

Oxygen levels in the photic zone fluctuate over the course of a 24-hr period.If you were measuring dissolved oxygen over the course of the day,when would you expect to see the lowest levels of oxygen and why?

Biological magnification of persistent toxins would be greatest in a

Temperate grasslands and temperate deciduous forests are two different biomes that are located in the same latitudes.Which one of the following abiotic conditions is most likely to account for the differences in their community composition?

Rhizosphaera needle cast is a fungal disease that affects spruce trees.Which of the following biomes would be most severely affected by an outbreak of this disease?

Scientists cannot predict when an El Niño will begin.But once it does,forecasters are able to predict changes to weather patterns.What would be a predicted weather effect of an El Niño?

Which of the following statements about El Niño are true?

The relatively shallow part of the ocean extending from the low tide mark to the edge of the continental shelf is called the

Which of the following choices best describes the relationship that exists between moisture and air temperature?