The answer is; burning unleaded gasoline
Unleaded gasoline does not reduce carbon emissions. The lead was added to fuel ideally for vehicles to reduce the knocking of engines. Lead in its chemical structure also increased fuel octane levels. When lead was discovered to be a neurotoxin, it was banned as an additive in fuel in most countries.
<span>The correct answer is d. increase the rate of breathing.</span>
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Peripheral chemoreceptors (the carotid and aortic bodies) can sense hypercapnia (high CO2) and then they send a signal to the breathing centre. Breathing centre is in medulla oblongata which regulates breathing movements. When CO2 reaches a certain level, a signal is sent to trigger an inhalation and the rate of breathing is increased.</span>
Answer:Most of the space inside the atom is empty because most of the α-particles passed through the gold foil without getting deflected.
Explanation:
That's a pretty complicated question. I can give you what I know:
Inner Core (Solid form)
Outer Core (Liquid form)
Partial Melt (A form where some of the solid forms are interchanging between liquid and solid form)
Mantle (Solid form / Rock)
Crust (Solid form)
