Measurements indicate that the worldwide average temperature dropped about a half degree Celsius for a couple of years after the eruption of Mt. St. Helens.
Answer the following statement true (T) or false (F)
False
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A block of ice slides with a kinetic energy of 40 J. If it slides at twice the speed, its kinetic energy is
A. 80 J. B. more than 160 J. C. 160 J. D. 40 J.
What term is used to describe the exclusive microecosystem picoplankton have been discovered to operate in?
a. "picoplankton economy" b. "microecosystem economy" c. "phytoplankton economy" d. "official economy"
e. "black market economy"The ultimate base level for stream erosion is ____________________
Fill in the blank(s) with correct word
Put the steps of formation of the early solar system in order from oldest to youngest. (Note: "First" refers to the oldest event and "Fifth" refers to the youngest.)
A) Rapid expansion of compact, dense mass to create matter and space. B) Accretion of bodies to create protoplanets. C) Formation and rotation of solar nebula. D) Contraction of gases and start of nuclear fusion in the first stars. E) Accretion of rocky debris creates planetesimals. 1) First 2) Second 3) Third 4) Fourth 5) Fifth