Answer:
This says that a very long time ago South Africa could have had glaciers and had a cold climate were as now South Africa has a very hot and humid climate.
Activation energy ........
From the earliest moments of life, the interaction of heredity and the environment works to shape who children are and who they will become.
The complex interaction of nature and nurture does not just occur at certain moments or at certain periods of time; it is persistent and lifelong.
