Will mark brainliest for the first person who answered correctly Where does geothermal energy come from? -Radioactive processes in nuclear power stations. -Radioactive processes within the Earth. -The decay of organic material. -The movement of the tides.

the answer is radioactive processes within the Earth.

Radioactive processes within the Earth.

Explanation:

many of Earth’s heat is constantly generated by the decay of radioactive isotopes, such as potassium-40 and thorium-232.

from 1609, galileo galilei used the recently invented telescope to observe the sun, moon and planets. he saw the mountains and craters of the moon, and for the first time revealed the planets to be worlds in their own right. galileo also provided strong observational evidence that planets orbited the sun.

his discoveries about the moon, jupiter's moons, venus, and sunspots supported the idea that the sun - not the earth - was the center of the universe, as was commonly believed at the time.galileo turned his gaze toward venus, the brightest celestial object in the sky - other than the sun and the moon.

seeing the graph would