(Q).
You are presented with the question "What increases the temperature of a bearing?" and the following answer choices: - metal type - water - friction - Energy. - wind - speed - vaporization - energy Now knowing that friction causes the temperature of an object to increase and friction in bearings causes an increase of the temperature inside the bearing, choose the best answer.
(A).
friction

(Q).
You are presented with the question "what can tidal energy be used to produce?" and the following answer choices: - energy - engines - offspring - waves - currents - adding heat - moon units - precipitation Now knowing that tidal energy can be used to produce electricity and electricity travels in currents, choose the best answer.
(A).
currents

(Q).
You are presented with the question "viruses infect and live inside the cells of what?" and the following answer choices: - plants - space - bronze - humans - life - ferns - death - Man Now knowing that viruses infect and live inside the cells of living organisms and life is a living organism, choose the best answer.
(A).
life