What units would be best suited for a measurement of 0.000000089 metres? Write out the name of the units, not the abbreviation,

89.0 nanometers

Explanation:  0.000000089 is 8.9x10^-8 m.  I don't think there is a metric prefix for 10^-8.  The term for 10^-9 is nano-  .  If we rewrite 8.9x10^-8 m as 89.ox10^-9 m,, it would be 89.0 nanometers.

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

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