Part A You have been asked to evaluate two different wells for safety. Well A and Well B have the same owner but are in different locations. Examine the results in the table for each of the wells.
Well A Well B
Contaminant Amount (mg/L) Contaminant Amount (mg/L)
arsenic 0.040 arsenic 0.06
cadmium 0.007 barium 3.0
cyanide 0.31 cadmium 0.001
nitrate 12 lead 0.000
thallium 0.000 nitrate 0.00

Refer to the data table and determine which contaminants are found in toxic quantities in Wells A and B.

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

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?

Explain why it’s important for scientists to study the sun. list at least two challenges researchers face when examining earth’s nearest star.