Question

read this topic sentence: birds are often identified by their common traits: feathers, beaks, and lightweight skeletons. which detail best supports the topic sentence? a. all birds lay eggs with hard shells. b. some birds, such as penguins, ostriches, and emus, do not fly. c. birds can be raised for food on domestic or commercial farms. d. bird feathers are used for flight, camouflage, and warmth. e. some birds eat only plants, while others eat meat.

Explanation:

The topic - sentence is about common traits of birds (feathers, beaks, lightweight skeletons). Option D focuses on feathers, which is one of the traits mentioned in the topic - sentence. Options A, B, C, and E discuss other aspects of birds like egg - laying, flight ability, farming, and diet, which are not related to the common identifying traits.

Answer:

D. Bird feathers are used for flight, camouflage, and warmth.