Search Results for: Ploughs soil erosion
reinforced (class / . f) potting or transplanting machine (class / . p) plant support placing machine, e.g., vine tying (class / . s) debarking, dethorning, or girdling (class / . d) water culture, apparatus or method (class / r) porous support (class / ) substrate or matrix, e.g., gel, artificial soil
class / ) budding (class / ) tree surgery (class / ) mulching (class / ) turpentine and rubber (class / ) buckets and spouts (class / ) tools (class / ) seed testers (class / ) roll (class / ) with heater (class / ) greenhouse, apparatus or method (class / ) bench or elevated bed, hotbed (class / ) soil...
https://patents.justia.com/patents-by-us-classification/47
major subdisciplines are mineralogy and petrology , geomorphology , paleontology , stratigraphy , structural geology , engineering geology , and sedimentology . [ ] [ ] physical geography focuses on geography as an earth science. physical geography is the study of earth's seasons, climate, atmosphere, soil
compounds and isotopes in geologic environments. geochemists use the tools and principles of chemistry to study the composition, structure, processes, and other physical aspects of the earth. major subdisciplines are aqueous geochemistry , cosmochemistry , isotope geochemistry and biogeochemistry . soil...
https://en.wikipedia.org/wiki/Earth_science