Nuclear fusion because the sun has massive gravity that squeeze hydrogen atoms together and fusing them into helium which releases energy
The correct answers are:
- Nations will adopt a universal language;
With the globalization, more and more languages are becoming endangered, and very soon will be gone forever. The reason with this is that with the globalization, there's also a language that is spread around, the English language, and the majority of the young population is very fond of it and learns it, neglecting their own language in meantime.
- More languages will become extinct;
Because the spreading of a universal language seems to be taken place, with the English language being the front runner, and because the young generations tend to focus on it more than at their own language, the native languages will die out relatively quickly in the future, at least most of them.
Religion, because it's something that families and cultures would pass down through their generations
A lunar eclipse happens on the moon, when the moon sails through the Earth's wide, fat shadow. Then, for a while, no sunlight can reach the moon, because the Earth is in the way. Anybody on the night side of Earth who looks up toward the moon sees it turn dark, until it sails out of the Earth's shadow after an hour or two.
A solar eclipse happens on the Earth, when the narrow end of the moon's skinny shadow falls somewhere on the surface of the Earth. Then, people who are inside that small spot and look up toward the sun can't see it, because the moon is in the way. The moon is moving so fast, and its shadow is so small, that this can only last for a few minutes at any one place.
