Calcareous sediments of the North Atlantic occur at deeper depths than calcareous sediments in the North Pacific.
Answer the following statement true (T) or false (F)
True
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Use a piece of string and the scale bar on the map to measure the river from the north end of the map to the south end. How many miles did you measure? What is the straight-line distance from the river at the north end of the map to the south end in miles?
What will be an ideal response?
Why does an atom with many valence electrons tend to gain electrons rather than lose any?
A) Atoms with many valence electrons tend to have relatively weak forces of attraction between the valence electrons and the nucleus. Therefore, the outer electrons are free to attract other electrons. B) There is stability in numbers. Atoms with many valence electrons are always attracting new electrons. C) The old adage that "he who has, gets" is also true in atomic structure. Atoms with many valence electrons can essentially overpower atoms with few valence electrons and attract additional electrons. D) Atoms with many valence electrons tend to have relatively strong forces of attraction between the valence electrons and the nucleus. This makes it easy for them to gain additional electrons.
The deep ocean floor is: a. entirely flat
b. mostly flat, but with a few small hills. c. mountainous at the spreading ridges, but flat away from the ridges. d. topographically varied, with many ridges and hills.
About ____% of worldwide stocks of tuna, cod, and other large ocean fishes have disappeared in the last 50 years
A) 10 B) 30 C) 60 D) 90