Respiration is the activity used to create oxygen in the blood.
cardiorespiratory fitness activity
Cardiorespiratory endurance
the cardiorespiratory fitness activity
This type of fitness is considered to be aerobic. It is cardio. An example would be running at a pace that you can hold for a long period of time, an hour or even longer. Explosive activities are not included in this area.
Hiking is primarily an aerobic activity, as it involves sustained, moderate-intensity physical exertion that relies on oxygen to fuel the muscles.
Control the fuel supply or oxygen supply to the fire.
The rocket carries its own supply of oxygen with which to burn the fuel.
That the supply of oxygen for the fire
A rocket has it's own supply of oxygen.
Oxygen and fuel and activity.
Remove the oxygen supply, smother the flames thus removing the oxygen, remove the fuel source, or wet the fuel source.
Riding a bike is considered an aerobic exercise because it primarily uses oxygen to fuel the muscles during sustained physical activity.