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The Biosphere and Human Effect

Across
Natural or man-made substance released into the environment in greater than natural amounts
Rain forest dominated by evergreen broadleaf (angiosperm) trees
Tropical grasslands
Average weather conditions such as temperature, humidity, wind speed, cloud cover, and rainfall over a long interval
Temperate _______ forest are regions that cannont sustain year-round growth
A semi-enclosed area where nutrient-rich water from a river mixes with seawater
Conversion of grassland or woodlands to desertlike conditions
Biological ________ occurs when a chemical pollutant passes through food chains, becoming increasing concentrated in higher and higher tropic levels
Forms between the polar ice cap and belts of boreal forests in northern hemisphere
Species likely to become endangered in the near future
Species evolved in one place and is found nowhere else
Ecological _______ helps to re-create or renew a diverse natural ecosystem tat has been destroyed or degraded
Down
Forest with rainy summers, dry and cold winters, dominated by conifers
Species that are particularly sensitive to environmental changes and can be monitored to assess whether an ecosystem is threatened
Drought-resistant, fire-adapted shrubs, mild winter with moderate rain; hot
Rain that forms when air pollutants released by burning fossil fuels combine with water vapor and fall to earth
Underwater mountains
Species that face extinction in all or part of its range
Biological ______ occurs when chemical pollutants taken up by organisms accumulate in their tissues
Removal of all trees from a large tract of land
CAM plants carry out gas exchange at night
A standing body of fresh water