And increased demand for books during the 1500s meant that

The diffusion of the printing press in 1500 made the demand for books increase.

Explanation:

At the beginning of the printing process there was no standardization to follow. As the prints multiplied with great speed, it was necessary to publish errors since the books were manufactured in large quantities and the errors multiplied in the same proportion. With the diffusion of the printing press, it was easier to correct the errors since in the manuscripts there would not be equal errors in the same edition. There was a need to insert indexes and cover sheets and catalog the books. Libraries were enlarged, and with so many books available, it was necessary to provide bibliographies so that readers could select the books to be read in the best way. In addition, with the large amount of reading options, a student was no longer interested in engaging in a single text and devoting himself to making comments. In this way the demand for books has increased considerably.

By 1500, there was a printing press in more than 250 places in Europe. In a few decades all of Western Europe had already produced more than twenty million volumes.

c.) biotic: snails; abiotic: temperature climate