How does brain drain affect the economy?

How does brain drain affect the economy? Brain drain is a problem described as the process in which a country loses its most educated and talented workers to other countries through migration. Negative effects include loss of tax revenues by the home country, and a loss of key health and education service professionals. What is […]

How did Catherine the Great expand the Russian empire?

How did Catherine the Great expand the Russian empire? During her reign she extended the Russian empire southwards and westwards, adding territories which included the Crimea, Belarus and Lithuania. Agreements with Prussia and Austria led to three partitions of Poland, in 1772, 1793, and 1795, extending Russia’s borders well into central Europe. What did Catherine […]

What animals helped spread the Black Plague?

What animals helped spread the Black Plague? In cases of plague since the late 1800s—including an outbreak in Madagascar in 2017—rats and other rodents helped spread the disease. If Y. pestis infects rats, the bacterium can pass to fleas that drink the rodents’ blood. When a plague-stricken rat dies, its parasites abandon the corpse and […]

Why was irrigation important to the pueblo?

Why was irrigation important to the pueblo? In the arid climate of the Southwest, Ancestral Pueblos developed complex irrigation systems, which maintained crops even in the hot sun. This new irrigation system allowed the Pueblos to begin planting beans and squash in addition to corn. How did the ancestral pueblo irrigate their crops? The Ancestral […]

What are the hardships and problems facing the urban poor?

What are the hardships and problems facing the urban poor? Introduction to urban poverty Poor quality, overcrowded housing. Risk of forceful eviction. Lack of safe, readily available, water supplies. Poor provision for sanitation, drainage and solid waste collection. Lack of access to healthcare, emergency services and policing. Difficulty accessing government schools, and. What are the […]

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