Which of the following minerals does not belong to the DISCONTINUOUS branch of the Bowen's reaction series?
a) Olivine
b) Pyroxene
c) Amphibole
d) Plagioclase feldspar
e) Biotite
Ans: d) Plagioclase feldspar
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The fossil record shows no significant change in terms of the diversity of organisms through
time. Indicate whether the statement is true or false.
Hurricanes coincide with areas of extremely ________
A) low air temperature B) high air temperature C) low air pressure D) high air pressure
Scientists use ________ to forecast climate change
A) CO2 concentrations B) political mandate C) statistics D) computer simulation models E) historical data
Rock falls
A. cause the "nick point" in a stream to migrate downstream with time. B. occur only on mountain sides in dry climates. C. are unaffected by waves slamming against the base of a sea cliff. D. occur on any steep-faced cliff, including under waterfalls.