Q.What are these motions called?
A.Its motion round the sun is called its annual or yearly motion.

Q.What is its other motion called?
A.Its diurnal or daily motion.

Q.What is caused by its motion round the sun?
A.The succession of summer, winter, spring, and autumn, which are called the four seasons, is caused by this.

Q.What is caused by its daily motion round its own axis?
A.Day and night.

Q.Into what two principal things is this earth on which we live divided?
A.Into land and water.