What is the main cause of high and low tides?
a) the tendency of the continents on a spinning globe to be thrown outward
b) daily heating and cooling of the seas, which causes seawater to contract and expand
c) a rise in sea level during the day because of an increase in storms
d) water is pulled by gravity of the moon
e) all of the above
Ans: d) water is pulled by gravity of the moon
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Most of the tourism and recreation sector in the Great Plains relies on visitors from where?
A) People from overseas B) People from nearby regions C) People from the the Great Plains D) People from all over North America
Orographic lift ensures that mountains receive abundant precipitation
Indicate whether the statement is true or false
Which of the following statements is true?
A. A coordinate system is based on a map projection. B. Map projection and coordinate system are unrelated. C. A map projection is based on a coordinate system.
________ deposits are found in streams where running water has mechanically concentrated heavy sediment such as gold.
A. Placer B. Pebble C. Lag D. Granular E. Agglomerated