Astronomy Quiz
20 questions · no time limit
0:00
EXTRATERRESTRIAL LIFE & MODERN TOPICS
Question 1 of 20
No time limit
Current
Answered
Flagged
Not seen
An Earth-like planet is found orbiting within the habitable zone of an M-dwarf star. While the total energy received is sufficient for liquid water, the star's spectral energy distribution peaks in the red and near-infrared. What is the most significant implication of this for the potential evolution of photosynthesis-based life?
YOUR PROGRESS
20
QUESTIONS
Ready when you are
Answer in any order. Your progress shows here as you go.
QUESTIONS
KEYBOARD
Pick an answer ABCD
Next question ↵→
Previous ←
Flag for review F
Answers save as you go · flagged questions come back at the end