[Q]: Which of the following solutions is better for the following goal:
How do you get dirt off of shoes?

[A]: Holding one in each hand, slap them together by their soles until dirt is removed.

[Q]: Which of the following solutions is better for the following goal:
Jet gasoline

[A]: can melt steel buildings easily.

[Q]: Which of the following solutions is better for the following goal:
To make a rainbow bridge for a decoration,

[A]: attach rainbow colored balloons on either side of a fabric walkway.

[Q]: Which of the following solutions is better for the following goal:
What supplies are needed to build a treeless tree house?

[A]:
Six cement blocks (I HIGHLY recommend the kind with epoxied-in metal post brackets. Although they are more pricey, they are much more secure and allow for easily adjusting post and block assemblies. More on that as we go along.) Six 8-foot pressure treated 4x4 posts Six 8-foot pressure treated 2x6 boards One 4- by 8-foot 3/4" board OSB (same dimensions in exterior grade plywood is another option) Approximately twenty 8-foot 2x4 boards Four 10-foot 2x4 boards Five 26" x 8' corrugated plastic roof panels One box (50 pcs.) of roofing screws for corrugated panels (the kind with built-in rubber washers) 5 lb. box of 3" exterior grade screws 5 lb. box of 1 5/8" exterior grade screws Two 50 lb. bags of general purpose sand Gallon of waterproof sealer Gallon of deck restoring paint