Explanation:
Oxygen does not enter the body except due to some diseases and loss of consciousness, and then the patient uses a ready-made ventilator
(viewpoint)
A. is the answer, the closer the peaks are to eachother, the higher the frequency and energy.
Answer:
Synthesis
Explanation:
A synthesis chemical reaction is where two simpler substances form together to create a more complex product.
The reactants can be either a single element or a compound, but the product is always a compound.
Since Mg and O2 reacted to create MgO, a compound, this represents a synthesis reaction.
The vibrations of the music coming from the speaker makes the sand move.
The crust is the outermost layer of the planet
