Causes and effects of desertification: Desertification is defined as a process of land degradation in arid, semi-arid and sub-humid areas due to various factors including climatic variations and human activities. Or, to put it in another way, desertification results in persistent degradation of dryland and fragile ecosystems due to man
Elizabeth Blackwell (3 February 1821 â 31 May 1910) was a British-born physician, notable as the first woman to receive a medical degree in the United States, as well as the first woman on the UK Medical Register.
Elizabeth Blackwell was a Scottish botanical illustrator and author who was best known as both the artist and engraver for the plates of A Curious Herbal, published between 1737 and 1739. The book illustrated many odd-looking and unknown plants from the New World, and was designed as a reference work on medicinal plants for the use of physicians and apothecaries.