Which of these is not a reason for using a placebo? A. So that the effect of a patient's mind is taken into account in the drug testing
B. To determine which of two pills is a better choice for treating a disease
C. So that all patients will believe their disease is being treated
D. To have a control group to test the drug's effectiveness against a disease​

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

no statements shown

the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

> they can be tracked and predicted by the right tools

-love shrooms

more infor would

a lot