Which of the following is the most likely culprit for why Africa has such a low life expectancy? HIV/AIDS IN AFRICA, 1958–2003 The deadly disease has been dramatically shortening life expectancy. Which nation had the highest number of deaths resulting from the Spanish flu pandemic October of 1918 the United Kingdom the United States Germany? […]
What causes air pollution in Mexico City?
What causes air pollution in Mexico City? Located in the crater of an extinct volcano, Mexico City is about 2,240 metres above sea level. The lower atmospheric oxygen levels at this altitude cause incomplete fuel combustion in engines and higher emissions of carbon monoxide and other compounds. Intense sunlight turns these into higher than normal […]
Cuanto es el reembolso por cada hijo 2020?
¿Cuánto es el reembolso por cada hijo 2020? Este crédito está disponible para usted si declara como dependiente en sus impuestos cualquier hijo menor de 17 años (para el final del año 2020). El monto máximo del CTC es $2,000 por cada hijo elegible. El monto máximo reembolsable es $1,400. Para recibir un reembolso por […]
Were the 1950s a decade of prosperity or hardship?
Were the 1950s a decade of prosperity or hardship? The booming prosperity of the 1950s helped to create a widespread sense of stability, contentment and consensus in the United States. However, that consensus was a fragile one, and it splintered for good during the tumultuous 1960s. How was the 1950s a time of conformity? During […]
What is the main difference between chemical and physical weathering?
What is the main difference between chemical and physical weathering? Physical, or mechanical, weathering happens when rock is broken through the force of another substance on the rock such as ice, running water, wind, rapid heating/cooling, or plant growth. Chemical weathering occurs when reactions between rock and another substance dissolve the rock, causing parts of […]
What did the Native Americans depend on?
What did the Native Americans depend on? Native Americans in the Great Plains area of the country relied heavily on the buffalo, also called the bison. Not only did they eat the buffalo as food, but they also used much of the buffalo for other areas of their lives. They used the bones for tools. […]
Why is it important to learn statistics in the study of psychology?
Why is it important to learn statistics in the study of psychology? Psychologists rely upon statistics to help assess the meaning of everything they study. Understanding other important statistical concepts such as bias, measurement, representation, correlations, significance and others. What does the use of a theory and hypothesis in psychological research allow for? A theory […]
Who was Horace Mann and what did he accomplish?
Who was Horace Mann and what did he accomplish? Horace Mann, often called the Father of the Common School, began his career as a lawyer and legislator. When he was elected to act as Secretary of the newly-created Massachusetts Board of Education in 1837, he used his position to enact major educational reform. What was […]
Can case law overrule a statute?
Can case law overrule a statute? Statutes generally have priority, or take precedence, over case law (judicial decisions). Under common-law judicial decisions, employers could hire young children for difficult work, offer any wage they wanted, and not pay overtime work at a higher rate. But various statutes changed that. What is a synonym for unconstitutional? […]
What happens if I add or remove CO2 by photosynthesis and respiration?
What happens if I add or remove CO2 by photosynthesis and respiration? Plants (and photosynthetic algae and bacteria) then use some of the stored carbohydrates as an energy source to carry out their life functions. Photosynthesis removes CO2 from the atmosphere and replaces it with O2. Respiration takes O2 from the atmosphere and replaces it […]