You can wait until he either breaks up (if he does) or if just forget about him and go for another guy.
Answer : The correct answer is option C.
Explanation:
Astronomers have observed that light from the distant object in the universe is shifted towards the frequency of red color which indicates that those object are receding or moving away from the planet earth.This phenomena was termed as Red shift .Same thing goes for galaxies which are very far away from the planet earth.
Where as if galaxies were moving towards the the planet earth their light would have shifted toward the frequency of blue color termed as blue shift.
Hence, the correct answer is option C.
Answer:
18. Liters
19. grams
20. meters
21. meters
22. liters or mass (not sure on this one) it depends
23. grams
C. Lowering the temperature
At the lower temperature, particles have less kinetic energy, so they move slower.