I agree with the person above - I'd say the correct answer is B. The greenhouse effect is changing Earth's atmosphere.
A is incorrect because the excerpt says that the atmosphere keeps the Sun's heat from leaking away into space. C is incorrect because it is the greenhouse effect that keeps the planet warm. D is not even mentioned in the text, which means that only B is correct.
Answer:
Little Mix are a British girl group formed in 2011 during the eighth series of the British version of The X Factor. They were the first group to win the competition, and following their victory, they signed with Simon Cowell's record label Syco Music and released a cover of Damien Rice's "Cannonball" as their winner's single. The group are known for their strong vocals and signature harmonies, as well as their representation of female empowerment and unity.[1] One of the most successful acts to emerge from The X Factor, the group consists of members Jade Thirlwall, Perrie Edwards, Leigh-Anne Pinnock, and Jesy Nelson.
Explanation: