What are two possible energy sources for the synthesis of organic molecules?
a. UV radiation and magnetism
b. radioactive decay and lightning
c. radioactive decay and UV radiation
d. lightning and UV radiation
e. lightning and magnetism
d
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Which of the following statements best describes the strong nuclear force?
A. The force is very strong but has a very short range. B. The force is very strong and works over very long distances. C. The force has two sides: the light side and the dark side. D. The electrical force is stronger than the nuclear force. E. The strength of the force increases with distance.
Consider a Mediterranean climate in the Northern Hemisphere. In what months does the rainy season occur? Why does rainfall occur mostly at this time of year and not at other times?
What will be an ideal response?
_______ are underwater volcanic mountains
Fill in the blank(s) with correct word
A large trunk glacier erodes downward more rapidly and carves a deeper valley than do smaller tributary glaciers.
Answer the following statement true (T) or false (F)