A. Tree leaves
Explain: because giraffes are herbivores their diet mainly consists of leaves and plants.
C. Sliding friction between a desk and the floor once it is moving
Oxygen is a vital element within cellular respiration. An intrinsic part of the cellular respiration cycle is the transfer or electrons through the electron transport chain, and at the end of it exists the mitochondria, in which electrons are donated to the Oxygen and combine with hydrogen ions to form water.
It helps with the optic nerve, if you give me options i can help answer. Sorry if I didnt help :)
Because a atom can join my nuts and I will have 3 nuts.?YOUR WELCOME JK