Solstice that occurs in december in the southern hemisphere is called

Southern Summer Solstice

Explanation:

Solstices are astronomical events that occur twice a year (June and December), in which the Sun reaches its highest or lowest apparent height in the sky, and the duration of the day or night are the maximum of the year, respectively. This is because the Sun reaches the maximum north or south declination with respect to the terrestrial equator.  

In this case we will talk about the december solstice in the southern hemisphere, which occurs regularly around December 21st and marks the beginning of summer in this hemisphere and the beginning of winter in the northern hemisphere.  

During this season of the year the days are longer than the nights, and as we get closer to the South Pole, we will have more hours of sunlight.

c)as speed changes, wavelength and frequency change.

everything changes!

first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.