Building Vocabulary Match each term with its definition by writing the letter of the correct definition in
the right column on the line beside the term in the left column.
E 4. big bang
a force that is causing the expansion of
the universe to accelerate
5. cosmic background radiation
6. dark energy
b. the asteroid-like bodies that formed the
building blocks of planets
7. planetesimal
c. leftover thermal energy from the big
8. dark matter
bang
9. solar nebula
d. matter that does not give off electro-
magnetic radiation
a large cloud of gas and dust, such as
the one that formed our solar system
a theory that the universe formed in a
huge explosion
e.

coal is not sustainable because it will one day run out.

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

youre right there are