Answer:
C. A mass of air that is similar in temperature and humidity
Explanation:
An "air mass" refers to a big volume of air that is characterized by having similar or uniform "temperature" and "humidity"<em> (moisture).</em> They come from different source regions, thus they are classified accordingly.
The<em> "cold air masses"</em> come from the <u>polar area</u>s while the<em> "warm air masses"</em> come from the<u> tropical areas.</u> An air mass may cause a storm, for example, when an air mass moves to a new region and confronts another air mass there with a<em> different humidity and temperature</em>.
It causes the seafloor and outermost crust (the lithosphere) to bend and form a steep, V-shaped depression.
The Presidential election in Nigeria in 1999 was significant
because it is the first election after the 1993 coup and it is the first
election of the Nigerian republic. In this election, Olusegun Obasanjo won over
Olu Falae. 62.78% of votes was casted under Obasanjo.