Which of the following accurately describes the main reaction that generates the Sun's light? OA.
Iron reacts with oxygen to form iron oxide.
OB. Light reacts with water to form glucose.
OC.
Oxygen reacts with carbon to form carbon dioxide.
OD. Hydrogen nuclei fuse, forming helium and releasing energy.

1.state2.trash3.the earth

The radiation of the fire causes the saucepan to heat up. the conduction of the saucepan then to distribute the heat over the saucepan and to give heat to the water. the convection of the water distributing the heat within the water, till all the water is boiling

Answertraveling around a circular trackexplanation"traveling around a circular track" is the best answer as you could be traveling around a circular track at a constant speed. your velocity would therefore have the same magnitude but will always be constantly direction. since acceleration is the rate of change of velocity, the rate of change will only involve the direction of velocity and not the magnitude.wrong choices: "an object at rest" does not accelerate at all"increasing speed while traveling around a curve" means that the acceleration will not be constant due to only change in direction; it will be constant due to both magnitude and direction"an object in free fall" does not necessarily change direction