Skip to content
free
K
1
2
practice
Home
Math
English
Science
Social Studies
Contact
Language
English
Español
Sign In
/
High School Electives
/
Astronomy
/
The Solar Activity Cycle
Grade Level
Astronomy
AST.173 The Solar Activity Cycle
0%
Skill Level
🟢 Easy
00:00
Progress to Next Level
25% to Medium
Easy
Medium
Hard
Mastery
100%
Which graph feature would most clearly show an approximately 11-year sunspot cycle?
A
A vertical axis showing only temperature in degrees Celsius
B
A straight line showing no rise or fall
C
Repeated peaks in sunspot number spaced roughly a decade apart
D
A single point with no time axis
Submit Answer