Why do you have to have set amounts of compounds

If a planet rotates 360 degrees during a 24 hour time period, what does that tell us about the planet? a. the middle of the planet is in darkness b. the seasons on the planet vary every day. c. the planet runs on a 12-hour time clock. d. the temperature on the planet varies daily.

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f

Light waves travel than sound waves.