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:
Explanation:
An atom is electrically neutral, because the positive charge of its protons exactly balances the negative charge of its electrons. For all atoms, the atom number = number of protons = number of electrons. If the numbers differ, it is no longer an atom, but an ion.
It means vigil in english
D. I did not remember that fact until my older sister reminded me.
Among the sentences presented, this is the sentence that contains an adverb clause, "I did not remember that fact until my older sister reminded me." The adverb clause in this sentence is "until my older sister reminded me". An adverb clause is simply a part of the sentence that contains a subject and a verb with a subordinate conjunction. The subordinate conjunction do not allow the clause to have a complete meaning. An adverb clause also answers to the question how, when, where and why. In this case, the adverb clause answers to the question "how".
