[Q]: Objective: To save energy in order to help reduce climate change,
[A]: drive less, ride a bike, take fewer airplane trips, insulate your home, and use CFL or LED bulbs.

[Q]: Objective: stone
[A]: can brake a glass

[Q]: Objective: how do you set of the SOS alert on an iphone?
[A]: press the power button fast three times, and it automatically sets off the SOS

[Q]: Objective: How to shape an old sawzall blade into a knife blade.
[A]:
Hold the sawzall blade by the back edge and carefully grind off all the teeth with a belt grinder. Hold the blade at a 20 degree angle and sharpen one side, flip over and sharpen the other side.