Answer:
B. Probing
Explanation:
Since Daniel is asking questions to "probe" for more information.
If he was asking for a better explanation, it would have been clarifying.
If he needed to rehear the information cause he didn't hear that the first time he might ask the speaker to repeat.
No, it isn't. They are diseases.
<span>neurotransmitter and brain stem
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Explanation:
Like most stars in our universe, the Sun is on the main sequence stage of its life. This means nuclear fusion reactions in its core fused hydrogen into helium. However, this process cannot last forever since there is a finite amount of hydrogen in the core of the Sun. Currently it has more than 72% hydrogen.
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