Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is problemed by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks containing an abundance of sulfide minerals. Areas where the earth has been disturbed (e.g. construction sites, subdivisions, and transportation corridors) may create acid rock drainage. In many localities, the liquid that drains from coal stocks, coal handling facilities, coal washeries, and coal waste tips can be highly acidic, and in such cases it is treated as acid rock drainage.
Answer:
The standard unit used to measure energy and work done in physics is the joule, which has the symbol J. In mechanics, 1 joule is the energy transferred when a force of 1 Newton is applied to an object and moves it through a distance of 1 meter. Another unit of energy you may have come across is the Calorie.
Explanation:
Answer:
I have chosen Slavery for the answer.
Explanation:
America has long been a prosperous country. In the olden days, the Southern states relied on tobacco, cotton and sugarcane for their economy. These were fueled by human labor or the so-called "slavery."
During the start of the Civil War, the South was producing 75% of the world's cotton and created more millions for the nation. They deeply relied on their most significant investment, the<em> Southern planters (the slaves).</em> <u>Slave labor has become so entrenched until the beginning of the 19th century.</u> By this time, slavery and cotton were essential part of the American's economy.
However, the <u>Abolotionist movement</u> gained influence in the Congress. This was an organized effort in order to end the practice of slavery in the USA. This created an economic pressure on the South, which heavily relied on slavery. People from the South provoked the movement because they believed that most slaves have no desire for freedom. This became an emotional and political issue. It divided much of the country. The <em>Atlantic Slave Trade</em> was also affected. This was involved in the transportation of the enslaved African people, mainly to America.
Answer:
A
Explanation:
Personally, I like to look at where the slope is 0. Here you can see slope is 0 whenever x = 0 or y = -1. Thus, these two zeros corresspond to two factors dy/dx = x(y+1) which means the answer is xy+x
Answer:
stimulus discrimination
Explanation:
Mrs. Ridcully probably attempted that her conditioning (her own specific whistle) would eventually be generalized and other similar stimulus (dog owner's whistle) would generate the same conditioned response, but she failed. Instead, the dog discriminates Mrs. Ridcully's whistle from other people's whistle and will only respond to her.
Stimulus discrimination happens when the subject is able to differentiate between different stimuli, and will only respond to an specific stimulus.
