Answer:
Overgrazing by livestock is leading to significant environmental degradation—Grevy's zebras compete with the ever-increasing livestock population and agricultural crops for water.
Explanation:
B. Horses, because they Indians found out they no longer had to travel by foot!!
The Tang Materia Medica was the first <em>pharmaceutical</em> book.
Materia Medica is the Latin term for collected knowledge about healing substances. The Tang Materia medica was written circa 659 CE and it is one of many contributions by the Tang dynasty to science. The book, published by the then ruling Chinese government, is a compilation of drugs and instructions for their use. The book has 54 volumes, divided into 3 parts:
- The Main body (20 volumes) and Table of contents (1 volume).
- Pictures of medicines (25 volumes) and Table of contents (1 volume).
- Illustrated description (7 volumes).
After it was published and distributed throughout the country by the Tang government, it became the national basis for the medical practice for more than 400 years.
Greek was the official language of the Byzantine Empire.
Those tools that had been preserved, of course, are the stone tools. Paleoindian stone tools were generally made from workable stones like chert, quartzite, or obsidian, and Paleoindians seem to have been very picky about only using the best materials for their tools.
I got this from here ⇒ Paleo Indians: Culture, Artifacts & Tools | Study.com
Hope this helps you! =^-^=