What is a hypothesis? How does it differ from a theory?
What will be an ideal response?
A hypothesis is a tentative (or proposed) explanation of an observed phenomenon. A scientific theory is a well-substantiated explanation of a phenomena, repeatedly confirmed through observation and experimentation.
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The oldest rock that makes up L?’ihi is an estimated 400,000 years old. Using the rate of plate movement that you calculated in question 3, how far has it traveled since its first lava cooled?
What will be an ideal response?
What is the principle advantage of geothermal energy? What will be an ideal response?
The Sun's photosphere
A) receives the energy from the Sun's core in a matter of minutes. B) radiates much of the energy the earth receives. C) decreases in density closer to the Sun's core. D) lies above the chromosphere.
In recent years, global climate change has caused more severe droughts in the western United States. This has resulted in ________
A) trees being weakened and stressed, making them more susceptible to bark beetles that feed on the trees B) fewer problems with diseases C) lower occurrence of forest fires D) extended growing seasons that benefit the trees E) an increase in tree density