Glacial advances in the past have been accompanied by increased CO2 levels
Indicate whether the statement is true or false
F
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Which of the following might best explain the reason why electrons are restricted to certain energy levels in an atom?
A. They are travelling at very high speeds. B. They behave like restricted waves and are self-reinforcing. C. They are interacting with the light around the atom. D. They are out of phase and self-destruct when outside of distinct energy regions. E. They behave like chaotic waves of alternating frequency.
How do you make a proton out of a hydrogen atom?
A. let the hydrogen atoms undergo fusion B. remove a proton from a helium nucleus C. remove an electron from a hydrogen atom D. let the hydrogen atoms combine to form a hydrogen molecule and eject a proton E. let the hydrogen atoms combine to form a hydrogen molecule and eject an electron
A rock with both igneous and high-grade metamorphic characteristics is a(n) ____________________. Fill in the blank(s) with the appropriate word(s)
Columbus used the midlatitude westerlies to sail to the New World
Indicate whether the statement is true or false