Which type of reaction does this diagram represent? a chain reaction that is caused by nuclear fission a chain reaction that is caused by nuclear fusion a decrease in energy that is caused by nuclear fission an increase in energy that is caused by nuclear fusion

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.

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?