It can be inferred from the passage that limestone deposits serve as the basis of________.

Câu hỏi :

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following questions.

A. coral reefs        

B. red algae  

C. subtropical seawater    

D. secret passages

* Đáp án

A

* Hướng dẫn giải

Đáp án A

Thông tin ở câu cuối của bài: This type of algae has an essential role in the formation of coral reefs: it secretes lime from the seawater to foster the formation of limestone deposits.

Copyright © 2021 HOCTAP247