Smooth rolling plains, modest highlands and lowlands, and no water describes the surface of ________.
Fill in the blank(s) with correct word
Question 2
Given that white dwarf supernovae are such good standard candles, why don't we use them to measure the distance to all galaxies?
A) They are rare events, so we have observed them in only a tiny fraction of all galaxies.
B) They can occur only in spiral galaxies, not elliptical galaxies.
C) We would, but we don't have enough telescopes.
D) We cannot see them beyond a distance of about 100 million light-years.
Water striders serve as a model organism for the study of sexual conflict between males and females.
Walruses leaving the water
Plains zebra are highly dependent on water.
Backlit view of Pluto's mountains, plains and foggy hazes
Ocean water flows vertically and horizontally, influencing climate
Surface ocean currents