A OXYGEN ... almost 99% of mass in the body is made up of oxygen ,hydrogen ,nitrogen calcium,carbon so on
Answer:

Explanation:
This process is known as <u>cellular respiration.</u>
This occurs in the mitochondria (the powerhouse of the cell) in both plant and animal cells. The equation is:

Glucose (obtained from eating food in animals and photosynthesis in plants) and oxygen is converted into carbon dioxide, water, and energy. The energy is used in the organisms for movement, growth, and repair.
Radio waves need a medium to transfer.
Yes it is alive . It respires , photosynthesizes and grows . It reacts to stimuli ( sunlight ) and tries to survive by adapting to the environment . Its' billions of cells form into transport vessels , roots , leaves and other structures to facilitate the creation and use of energy .