Labels:book | cd rom | compact disk | crt screen | earth | person OCR: Have nou used this CD ROM before? If not. click Tn the box to see an introdu cti ion to the disc. If you are familiar with the disc click in the box to select topicfor study Processes in lho atmosphere Changing seasons Tesources Life in dilferent cllmate zones Introduction to the CD ROM Go to main menu page Credits topic Weather climate