8th Grade Science

vdlc267 | 00:26 Thu 06th Mar 2008 | Science

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A researcher conducting studies of the water level in a nearby spring found the level to be decreasing by two centimeters a year for the past 10 years. What would be a reasonable explanation for this?

a) the populations of animals in the spring have been increasing steadily over the last 10 years.
b)a new subdivision was built about 10 years ago nearby that gets its water from under ground wells.
c)the forestry service has planted mare trees in nearby parks over the last 10 years
d)there has been above average rainfall for the past 10 years in ares that drain into the spring

dna

science

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