Which of the following is not an abundant radioactive element within Earth?
A) thorium
B) uranium
C) potassium
D) curium
Answer: D
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Because they are of smaller scale, non-point source pollution sources are more easily regulated and controlled than are point sources
Indicate whether the statement is true or false
If the two bodies in part (a) were the same size, what would be the ratio of the heat emitted by the hotter object to the heat emitted by the colder one?
What will be an ideal response?
The early Industrial Revolution primarily relied on fossil fuels to ________
A) run gasoline engines B) generate heat and electricity C) generate steam D) run power plants that generated electricity
Using the choices below, select the statement that best explains how dissolved gases drive volcanic eruptions
A) As the magma rises, gas bubbles contract, fragmenting the material and expelling it from the vent. B) As the magma rises, gases reduce silicate mineral chains by breaking silicon-oxygen bonds; the result is an explosion. C) Confining pressure decreases on a rising magma, allowing gas bubbles to expand and fracture the magma. This process further decreases pressure on the magma and will result in an explosive event. D) Decreases in confining pressure result in decreasing viscosity of the magma, allowing the magma to ooze from the volcano.