Q: Scientists are concerned whether the oceans and land biosphere will take up as much carbon in the future as they presently do.
(a)worried
(b)indifferent
(c)curious
(d)puzzled
Correct Answer: (c)
The correct answer is (b): indifferent. Subject: English Language | Sub-topic: Grammar & Vocabulary Note: This answer was determined through AI-based research. Verify against the official answer key when available.