Hydrocarbons are compounds of hydrogen and carbon.
Photosynthesis is a process of nutrition in plants.
Thunder is a sound.
Lightning and electric eels are electrical phenomena in nature.
Answer:

Explanation:
According to Gauss's Law, the electric flux of a charged sphere is the electric field multiplied by the area of the spherical surface:

This is identical to the electric flux of a point charge located in the center of the sphere.

Answer:As people get older, most become better able to regulate negative feelings and emphasize the positive.
Explanation: With age, your skin thins and becomes less elastic and more fragile, and fatty tissue just below the skin decreases. You might notice that you bruise more easily. Decreased production of natural oils might make your skin drier. Wrinkles, age spots and small growths called skin tags are more common.
Minor characters. These are the other characters in a story. They are not as important as the major characters, but still play a large part in the story. Their actions help drive the story forward. They may impact the decisions the protagonist or antagonist make, either helping or interfering with the conflict.