In this task the focus is on physical knowledge about the world. Given the provided goal task in the input, describe a process that would lead to the asked outcome. This process often involves physical motions with objects, such as moving them, arranging them in a certain way, mixing them, shaking them, etc. 

How do you decide what type of fish to keep in an aquarium?
To decide what type of fish is best for your aquarium, first consider the size a species of fish will be full grown, and make sure you can safely accommodate it. Then consider things like water chemistry requirements, aggression level, tankmates and dietary needs.

To have a porous lining in the bottom of soda bottle hydroponic garden.
Place the dirt in a coffee filter in the soda bottle.

How can you avoid smashing your thumb while nailing?

When starting a nail, hold it with your thumb and forefinger right under the head rather than lower down. You’ll be able to keep your eye on your thumb as well as the nailhead, giving you better aim.