Which best describes the role of a producer in an ecosystem? a. a producer supplies oxygen for the consumers in the ecosystem. b. a producer supplies energy for the consumers in the ecosystem. c. a producer supplies light for the consumers in the ecosystem. d. a producer supplies water for the consumers in the ecosystem.

What is the main reason that attitudes are more often revealed in spoken rather than written language? a. in writing, we try to put the "best face" on what we write. b. we speak far more often than we write. c. in writing, we can more easily conceal our attitudes. d. in spoken language, we are often careless in our use of words.