What caused scientists to question whether Pluto was a planet? PLEASE ANSWER

5. what is a red giant? can our sun become a red giant? why or why not?

What effect has the drug trade had on some governments in middle and south america? a. it has funded political instability. b. many nations have created democratic governments. c. many governments have allowed the drug trade to fund local programs. d. it has funded political stability.

The days of the “midnight sun,” when the sun never really sets at night, occur during what season?