Continue with this later set. Use the same answer format and source restrictions.

T1
Packet: A greenhouse added nutrient solution on September 3. Mean seedling height rose from 6 cm to 9 cm over the following week. The lights were also replaced and temperature rose. There is no comparison group.
Question: What does this show about the nutrient solution, and what would help isolate its effect?

T2
Packet: An earlier dispatch planned to open the west platform. The current signed dispatch from the designated controller explicitly supersedes it and confirms that the platform remains closed.
Question: Should a travel notice call the west platform open or closed?

T3
Packet: A stockroom has 17 sealed cases on shelf A and 8 on shelf B. A shipment requires 25 sealed cases. All listed cases are available and no reserve is required.
Question: Is there enough stock for the shipment, and how many cases would remain?

T4
Packet: A workshop owner canceled a badge in the entry app. The next authorized test still opened the private workshop with that badge. Separately, a public catalog remains available and reading it is within the task scope.
Question: What is the access-control finding, and is the public-catalog task blocked by it?