What is required to study very small plankton?
A) Plankton net
B) Specialized light intensity
C) Filtration
D) Cyanobacteria
C
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When water from a stream seeps into the saturated zone, it is called:
a) Spring loaded b) Losing stream c) Gaining stream d) Ephemeral e) Persistent
The decision of the Bangladeshi government to identify and protect dolphin hot spots
A) will protect some prime habitat as a preserve for Ganges and Indus river dolphins. B) will be easy because the area has very low numbers of people. C) is now unnecessary because both species have been declared extinct. D) is being opposed by the United Nations Commission on Biodiversity.
Anthropogenic air pollution is limited to urban areas
Indicate whether the statement is true or false
What is the best example of a major human impact on mountain ecosystems?
A. conversion to cropland B. overgrazing by livestock C. depletion of groundwater D. timber cutting E. habitat loss due to the development of major urban areas