What forms as a result of nuclear fusion

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Explanation:

fusion research became 'big science' in the 1970s. ... Fusion powers the Sun and stars as hydrogen atoms fuse together to form helium, and matter is converted into energy.

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Fusion powers the Sun and stars as hydrogen atoms fuse together to form helium, and matter is converted into energy.

Explanation:

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

the answer is d.) potassium