If south africa currency rate is better than brazil and people come to visit here but they are from brazil wil it be beneficial to south africa and why

In the long run, no.
Whenever there is an increase in immigration, we will experience a short period time of growth due to an increase in productivity level.
But, Immigrants tend to send the fruit of their labor back to their families in original country, which means the capital is not distributed back to South Africa but rather to Brazil

With any turning vehicle, the rear wheels follow a shorter path than the front wheels. the longer the vehicle is, the greater the difference will be. truck drivers initially swing out before making a turn. what isn't shown in this illustration is as car straightens out, the front wheels must travel a greater distance and the tail end drags on the shortest path.

Your answer is: increased air temperatures  hope this ! : )