A topographical map shows elevation
Options A and D are true. The other two options are absurd and not even based on fact while A & D are true concerning this part of Africa at that time.
Hi!
Our sky is blue because air molecules will span out <em>blue </em>light from our sun more than <em>red </em>light from our sun.
If you look at the sun, you'll see orange and red colours due to the fact that the suns blue light has already been disbursed away from our line of sight.
Hopefully, this helps! =)
