Living beings need energy to perform life processes and other activities, while machines need energy to operate and perform tasks.
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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.
Activities that are more strenuous require more energy compared to less strenuous activities.
Living beings need energy for activities such as playing, singing, reading, writing, thinking, jumping, cycling, and running.
All living beings need food because it provides the energy required to perform basic life processes and other activities.
Ultrasonography is non-invasive, helps detect congenital defects and growth abnormalities during pregnancy, and can break down kidney stones without surgery.
Ultrasound can be employed to break small kidney stones into fine grains, which later get flushed out with urine.