In 2011 and 2012, scientists working on the banana river in florida recorded a dramatic increase in the number of manatee deaths. over the past 50 years, this area has also seen the human population increase by more than 500,000 people. it is believed that pollution from numerous sewage tanks leaked into the water, eliminating the manatees' food source, replacing it with an alga that is toxic to the manatee. this is an example of
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Astudent wants to compare the amounts of co2 given off by yeast provided with different amounts of sugar. the student places a balloon over each container to catch the released co2. which observation is a qualitative observation the student can make?
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In 2011 and 2012, scientists working on the banana river in florida recorded a dramatic increase in...
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