If two small beakers of water, one at 70°C and one at 80°C, are emptied into a large beaker, what is the final temperature of the
water?
a. The final temperature is less than 70°C.
b. The final temperature is greater than 80°C.
c. The final temperature is between 70°C and 80°C.
d. The water temperature will fluctuate.

the final temperature is between 70 C and 80 degress c

Explantion: took the test

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.