What is true of saturated fatty acid chains?

They contain at least one double or triple bond.

They are only made in leaf cells of green plants.

They are more healthy that unsaturated fats.

They contain only single covenant bonds

Explanation:

Question 17: B: They may provide evidence that Pennsylvania was once covered by warm ocean waters since most corals are presently found in these environments.

Question 14: I think the answer for this question might be A. But I'm not sure.

Question 10: D: Plates move toward each other and volcanic mountains form.