Which is a trait of a scientific text? a
Commands are written in point form or detailed numbered steps.

b
Provides factual information about experiments completed by scientists

c
Shows instructions on how to perform a specific task or experiment

d
Text structure is often a problem and

d . Text structure is often a problem and solution

Explanation:

a . is not the right answer. The scientific text doesn’t have to include points and numbered steps.

b. is not the right answer. Not all scientific texts include the experiment, and it’s the description.

c. is not the right answer. Scientific text isn’t manuals for the performance of an experiment.

d. is the right answer. Scientific texts are structured to pose the problem, explain it, and analyze it. Afterward, the author poses the solution to the said problem, citing why this solution is the right one and what are the objective and accurate reasons that these results are true. It has to be clear and propose scientific methods and sources.

b) to encourage free trade

i believe the answer is:   psychological  experiment

in this experiment, wilhelm wundt became the first person that implement scientific method in analyzing the pyschological phenomenon.

due to this result, wilhelm wundt also able to make psychology to be acknowledged as a separate scientific field from biology.