Answer:
I believe it is D.
Explanation:
Hot water rises, cold water sinks. So we've ruled out A and B with that. And I believe the currents flow from Atlantic to Pacific, making the answer D.
I believe for Percentage of college and university graduates
B shadows
The position of the sun in the sky casts a shadow on a properly placed sundial. This will give you time of day depending where the shadow falls.
The answer is A, 4.6 billion years old. The solar system was obviously formed after the big bang, and using the big bang theory and the birth of our sun, projections show that our solar system is at most 4.6 billion years old.
Arid
<span>Lacking moisture, especially having insufficient rainfall to support trees or woody plants</span>