Which of the following is produced in the Earth's upper atmosphere as a result of excited atoms and molecules giving off visible light?
A. prominences
B. flares
C. solar wind
D. aurora
Answer: D
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The size of a species' population, be that of an animal or plant, is influenced by births, deaths, immigration, and emigration.
Answer the following statement true (T) or false (F)
Because the same shore may be made of different rock types, shorelines ________; because waves refract, the shoreline ________
a. become irregular; straighten b. straighten; become irregular c. become irregular; become irregular d. straighten; straighten
The secondary rainbow is located outside the primary bow
Indicate whether the statement is true or false
We can use X-rays to determine the internal structure of a mineral, and thereby ________.
A. change the mineral's structure. B. shrink the mineral. C. destroy the mineral. D. identify the mineral. E. change the mineral's composition.