Why is nuclear fusion not used to produce electricity? A. Fusion requires conditions that exist only in the cores of stars.
B. Fusion produces nuclear waste.
C. Fusion requires steam turbines, which are expensive.
D. Fusion produces only a small amount of energy.

What is the solubility of substance?

20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?