In the evening, I drink a cup of tea and watch the stars. I think about the antelopes and what Zhaxi told me. Much
As human
In order to save this species from
As that heat rises, some of it is
Several gases in the atmosphere
The most
The Earth is made up of three layers. In the centre is the core, which is as big as the Mars and has a high
The crust is made up of tectonic plates. These huge plates are moved slowly by magma currents below, sliding past each other with