A student wanted to investigate the effect of varying concentrations of auxin on plant growth. Bean plants were grown in potuing soll in individual pots. Different
amounts of auxin were sprayed daily on plants in different pots. The plants were
grown at room temperature. At the end of one week the plants were examined
As a control the student should have used a pot that
did not contain a plan
was grown ar 37 deseos C
contained a tomato plant
was not sprayed with auxin

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?

How far away is the nearest black hole from earth?

When sodium chloride dissolves in water the sodium cholride dissociates into?