Explain the further innovations in printing technology in the 18th century.

Explanation:

There are four traditional types of printing: relief printing (with which this article is mainly concerned), intaglio, lithography, and screen process printing. Relief printing encompasses type, stereotype, electrotype, and letterpress. Flexographic printing is a form of rotary letterpress printing using flexible rubber plates and rapid-drying inks.

food chain i would say only because there is competition on getting food and survival