Which of the following can be labeled as autotrophs? a. detritivores b. primary producers c. scavengers d. carnivores

Only B. Primary producers

FYI: detritivores are decomposers, scavengers can be carnivores or herbivores, and carnivores primarily eat other animals. Think "producers produce food" to eat, i.e. plants (fruits and vegetables).

B. Primary producers

Give me the statements

Ecological footprint is determined by measuring carbon dioxide emissions for a given region.