Multiple Choice
The sun is composed mainly of ________.
A) helium and oxygen
B) oxygen and nitrogen
C) hydrogen and helium
D) hydrogen and oxygen
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q12: The soil component having the smallest particle
Q13: Tapeworms, ticks, lamprey, and mistletoe are all
Q14: How does the energy efficiency of ecosystems
Q15: For cellular respiration to occur, most organisms
Q16: Commensalism is _.<br>A) harmful to one species<br>B)
Q18: Explain the differences between parasitism, mutualism, and
Q19: The layer of Earth's atmosphere that contains
Q20: Optimal foraging theory suggests that _.<br>A) costs
Q21: The kingdom characterized by a lack of
Q22: Explain the implications of a meat-based diet