Probley electric
tune up your furnace, turn down the water heater and don't leave lights on when you exit a room.
Carbohydrates provide the quickest energy for tigers.
Sugar.
alpha radiation
glucose
Generally speaking, life problems that are the easiest to solve are the ones you know how to solve. Even if the solution requires time or energy, you'll have a plan because you know what to do to get to the solution.Generally speaking, ANY problem is easiest to solve when you know how to solve it, whether in math, science, or daily life.
Photons absorbed by a solution "disappear" and the energy they brought with them is transferred into the solution. That energy appears in the "activity" of the atoms, molecules and/or ions in the solution. The kinetic energy of these particles will increase because of the added energy.
Friction would be the easiest way.
300 USD
heating it
exothermic solution is the solution which liberates energy in the form of heat.
Carbohydrates are essential to provide energy for the body because they are quickest source of the energy for the body. They meet the body's immediate energy needs and are the first source of the energy the body uses.