Students in an eighth-grade science class are classifying photos of different stars when they come across a picture of the star called Sirius. The students already learned that Sirius is a very bright star. Which of the following is an additional physical property that could be used to classify Sirius?
distance from Earth
rotational speed
temperature or shape

The correct answer is A) Distance from Earth

Explanation:

Astronomers and mathematicians have estimated that the distance to Sirius is about 0.437 light-years or 27664 times the distance between the Sun and Earth. A light-year is about six trillion miles.

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since there isn't any suggested answers i will give you the reason and hopefully you can figure it

south africa, or rather all of africa, has not been in the location in which it is nowadays throughout the geological past. after the super-continent pangaea started to break apart, gondwanaland, in which was africa, moved further south, and parts of it came to be very close to the south pole. because the climate in this part of the world is very cold due to the very dispersed sun rays in there, what is now south africa, started to freeze, and the conditions were right for the formation of glaciers. the glaciers existed up until the period when gondwanaland started to break apart and what is now africa started to move towards north, sp it warmed up and the glaciers melted.