Shapley found the distance to the center of the galaxy by studying the distance to open clusters.
a. True
b. False
Indicate whether the statement is true or false
Question 2
A ZAMS star evolves __________ and to the __________ on the H-R diagram because ________________.
a. downward, left, the core expands which causes the outer layers to expand b. upward, right, the core contracts which causes the outer layers to expand
c. upward, left, the core expands which causes the outer layers to contract d. downward, right, the core contracts which causes the outer layers to contract
The insect family Coenagrionidae is found in the order Odonata and the suborder Zygoptera.
OPEN GLOVING 1
OPEN GLOVING 4
Over Studying
Me Studying 10% 90%
When dry, the long fruits (pods) of the California poppy (Eschscholzia californica) split open sudde