The answer should be true because in either way both are releasing CO2 back into the air which does harm the atmosphere.
The answer is D. Muscles tense.
The best answer would be B) because the questions says health related, so yeah A) is sweet and all but that's not involved with health that's involved with genetic disorders, so no, not C) because that's not health related, just construction, not D) because its not health related.
D: nervous is the correct answer
