Which of the following trade policies provides revenue for the government? a. tariffs b. import quotas c. protectionism d. voluntary trade agreements

d is the correct answer.

b is incorrect because it makes food by itself

c is incorrect because us humans don't know how to produce their own food using the sun like plants.

a is incorrect because consumers can depend on carnivores for eating food for consumers to eat the dead organism. same thing with omnivores.

answer; strength of association;