Which of the following is a correctly written thermochemical equation?

The water cycle increase the water content in the earth atmosphere

Into because calcium makes cells

Firstly, the planetary model of the atom  failed  to explain why individual atoms produce discrete  line spectra. in fact, according to rutherford's model, each individual atom should produce a  continuous  line spectrum. the second flaw to his model was the fact that electrons orbit the nucleus in a circular fashion.

It’s completely renewable in that we don’t need to consume anything to get energy. essentially after we can harvest it, it’s free energy