General Technique

Question 1

evaluating validity of an investigation

Answer 1

general suggestions:

(valid because) all data from the experiment support the
conclusions formed by the grower
(invalid because) – any two from:
 conclusions can only be formed based on the range of
data used
 grower incorrect to draw conclusions about trends in
temperature or CO2 concentrations based on only two
pieces of data
 grower incorrect to draw conclusions about how the
plants might behave outside the range of data
investigated