Q: What is the most abundant element in the universe? Choices: - carbon - helium - nitrogen - hydrogen A:
hydrogen

(Question)
Q: How many pi bonds are found in a triple bond? Choices: - 10 - six - four - two A:
(Answer)
two

Ques: Q: The ozone layer protects the earth from what? Choices: - pollution - light waves - radio waves - uv radiation A:
Ans: uv radiation

(Q).
Q: What do we call the system of classification consisting of a hierarchy of groupings called taxa? Choices: - lamarckian system - linchpin system - crocodilian system - linnaean system A:
(A).
linnaean system

Ques:Q: The ability to maintain a stable internal temperature, despite the climate, is exhibited by members of what animal group? Choices: - fish - parasites - reptiles - mammals A:

Ans:mammals

Ques:Q: What are the poles labeled? Choices: - west and south - southwest and south - east and west - north and south A:

Ans:
north and south