Rapid changes of a magnetic field induces
A) a magnetic field of greater magnitude.
B) a magnetic field of the same magnitude.
C) an electric field.
C
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Which of the following is the major concern about climate change if CO2 levels in the atmosphere exceed 450 ppm?
A. the effects would be irreversible B. the earth would erupt into a huge fireball C. all life on the planet would die D. some oil companies will go out of business
A hypothesis can never be changed or modified
Indicate whether this statement is true or false.
What is the driving force behind pyroclastic flows?
A) Directed explosion B) Gravity C) Water D) Earthquakes
The dry season in the tropical monsoon climate occurs when
A) the ITCZ moves away from the region. B) a continental polar air mass influences the region. C) cold ocean currents shift into the region. D) cold air masses dominate the region.