Which statement best expresses the central idea of the text? A. The types of food people eat and the way that it is produced has varying costs for the environment, ranging from releasing pollution to wasting resources.
B. People tend to buy food that is low cost for themselves; however, this type of food is usually produced in a way that is costly to the environment.
C. The only way to reduce the emission of greenhouse gases is for the biggest meat eaters to convert to vegetarian or vegan diets.
D. People don’t have to change what they eat to help the environment, just how their food is farmed or raised.

sentences vary by structure as well as by function. there are compound, complex, and compound-complex sentences.

simple sentence

i like to read.

a simple sentence has one independent clause.

compound sentence

i like to read, and i also like to write.

a compound sentence includes more than one independent clause, connected by a coordinating conjunction (and, but, for, nor, or, so, or yet).

complex sentence

i prefer to read books that are bestsellers.

a complex sentence includes one independent clause and one or more dependent clauses. (a dependent clause is one that cannot stand alone.) types of dependent clauses include relative clauses (i kicked the boy who pinched me), adverb clauses (i am going home now because i have a curfew), and noun clauses (i don't know what to do next).

compound-complex sentence

although i prefer to read current bestsellers, i do like to read old agatha christie mysteries, and i also like some 20th-century science fiction.

compound-complex sentences take a bunch of clauses (multiple independent clauses, and one or more dependent clauses) and toss them together like a salad. although these sentences take practice to write in a grammatically correct fashion, they can hold a tremendous amount of meaning, and are common in academic writing.

what are the identies