Words dealing with earth or dirt can not be ignored and so today you will have an opportunity of see many of the words which are interlinked with the topic; especially, as you click on the links at the bottoms of the word group pages.
Agriculture is certainly a part of the "earth, dirt" subject, but you may be surprised to see many other applications of today's topical vocabulary.
Maybe a person's time would be as well spent raising food as raising money to buy food.
Farming is known as a growing industry.
We have seen them and heard a lot about stars and now you can see the multitudes of words referring to them; including scientific and the "not-so-scientific" presentations.
Stars have been around for a long time and they will be here for much longer, so take advantage of this opportunity to learn more about them from various perspectives.
Long before the invention of writing or the construction of observing instruments, the sky was a cultural resource among peoples throughout the world.
Seafarers navigated by the stars; agricultural communities used the stars to help determine when to plant their crops; ideological systems linked the celestial bodies to objects, events, and cycles of activity in both the terrestrial and the divine worlds; and we cannot exclude the possibility that some prehistoric and proto-historic peoples possessed a genuinely predictive science of astronomy that might have allowed them, for example, to forecast eclipses.
Whether or not we are star-gazers, astronomy touches every part of our lives. The calendar by which we live is determined by careful observation over many centuries of the apparent motions of the sky, and our ideas of religion and cosmology are directly influenced by what we know of the patterns of the stars and planets.