Choose the sentence which has the closest meaning to the original one.

Ocean acidification increases, resulting in fewer carbonate ions for creatures like crabs and lobsters to build their shells and skeletons.

Đáp án chính xác: Ocean acidification is the reason for fewer carbonate ions available for creatures like crabs and lobsters to build their shells and skeletons.

Học sinh quan sát hình ảnh/ngữ cảnh và chọn đáp án đúng: Ocean acidification is the reason for fewer carbonate ions available for creatures like crabs and lobsters to build their shells and skeletons..