Which statement about energy is correct? A) A little energy is lost every time an energy transformation occurs.

B) Because of the conservation of energy, it is possible to have a machine that would never need energy.

C) Conservation of energy occurs only when some of the energy is converted to light.

D) Energy can change form, but energy can never change in total amount.

B) is true

Explanation:

because in the 24th century that we are now people have created machine that can work without energy

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?