Agroup of students is doing a project on a lake ecosystem. the lake looks suspiciously green. no sunlight penetrates through. what impact could this situation have on the lake's ecosystem?
the aquatic animals will be killed due to an increase in the dissolved oxygen content.
the aquatic animals will be killed due to a decrease in the dissolved oxygen content.
the aquatic animals will thrive due to an increase in the dissolved oxygen content.

Some technological solutions to problems like global warming meet the specific needs and situations of local communities. an example from india involves converting the solid waste from cattle into clean-burning fuel for cooking. this reduces the amount of greenhouse gases, specifically methane and carbon dioxide, released into the environment from wood fires. when evaluating the feasibility of implementing this solution, computer models are used to weigh costs against benefits. what factor is least likely to impact the decision on adopting this technology?

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one

Which process in respiration happens first? a)pyruvate processing b)electron transport chain c)krebs cycle d)glycolysis