Sustenance Comes From The Sky

This is communicated clearly in ayats [1] and hadiths [2]. Today scientists have begun to realise this fact. In rainy weather, owing to lightning, the nitrogen gas in the air chemically combines with oxygen gas, forming a colourless gas called nitrogen monoxide. This gas cannot remain stable in the air. Combining with oxygen again, it turns into nitrogen dioxide. And this gas, which is orange-colored and suffocating, combines with the moisture of the air and turns into nitric acid. On the other hand, the hydrogen gas, which has become free from the air's moisture as a result of its disintegration with the effect of lightning, combines with the air's nitrogen and turns into amonia gas, which, combining with the nitric acid, which has also been formed meanwhile and with the carbon dioxide gas, which already exists in the air, makes the salts called amonium nitrate and amonium carbonate. These two salts, soluble like the salts of all other alcaline metals, descend on the earth with rain. The earth turns these substances into calcium nitrate and gives them to plants. Plants change these salts into albumens (proteins). Proteins pass into grazing animals and men from plants. Men take them from plants and from animals that eat grass. These substances are the building stones of men and animals. Dry proteins contain 14% nitroen gas. Now, it has been calculated today that by means of rains more than four hundred million tons of the air's nitrogen falls on the earth and turns into food each year. The amount that falls on seas is certainly much more than this. We can understand through science today that the sustenance descends from the sky in this manner. It must be descending in many other ways. Maybe in the future, science will be able to discover some of them.

[1] ayat: A verse of al-Qur'an al-karim; al-ayat al-karima.
[2] hadith (sharif): i) a saying of the Prophet ('alaihi 's-salam).; al-Hadith ash-sharif: all the hadiths as a whole; ii) 'ilm al-hadith; iii) Books of the hadith ash-sharif. iv) Al-hadith al-qudsi, as-sahih, al-hasan: kinds of hadiths (for which, see Endless Bliss, II).