What is the name of constellations that appear to never rise or set?
a. polar constellations
b. circumference constellations
c. circular constellations
d. celestial polar constellations
e. circumpolar constellations
Question 2
Why is the term arc used to describe units of measure for angular distance?
a. To avoid confusion with the minutes and seconds of time
b. To describe the arc-shaped distance between the stars
c. To distinguish the base unit of 10 per degree
d. To distinguish the difference between northern and southern spheres
e. To describe the placement of the stars within each hemisphere
Nonpolar and polar bonds in an organic molecule
Synthesis of polar head groups of bacterial phospholipids
Rapid sea level rise
The Nile Delta will be strongly affected by a rise in sea level of 50 cm
The Rise and Fall of Separation Anxiety