10 POINT PLS HELP
Use the second law of thermodynamics to explain why a heat engine cannot be 100 percent efficient.

A heat engine cannot be 100% efficient because, according to the law, energy added as heat is always greater than energy removed as heat.

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper.

where is the photo and the answer choices?