Living beings need energy to perform life processes and other activities, while machines need energy to operate and perform tasks.
Discussion Forum Latest Questions
Both living beings and machines need energy to perform various activities and functions.
Some engines require fuel like petrol and diesel because they convert the chemical energy in the fuel into mechanical energy to perform work.
Humans use animals to lift weights, carry loads, pull carts, and plough fields.
Animals engage in activities such as jumping, running, fighting, moving away from enemies, finding food, and finding safe places to live, all of which require energy.