Answer:
Explanation:
Volcanic gases react with the atmosphere in various ways; the conversion of sulfur dioxide (SO2) to sulfuric acid (H2SO4has the most significant impact on climate. Volcanoes can impact climate change. Read more on usgs.gov
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Answer: 3. variable ratio
Options:
1. fixed interval
2. fixed ratio
3. variable ratio
4. variable interval
Explanation: The variable ratio of reinforcement uses rewards to create a high and steady rate of response. The rate of reward for a target behavior is unpredictable so the rat does not know when its response will get a reward. It will keep responding until the reward is delivered.
The options listed above are schedules of reinforcement. They are schedules used in rewarding target behavior in Operant conditioning.
The government take an active role in the regulation of the u.s. financial system because commercial banks are essential to the creation of money and to the protection of American citizens.
Commercial banks are essential to the printing of banknotes and are therefore regulated by the government to make sure a sound and competitive financial system. Government is the best political party to maintain the financial system.
However, excessive state intervention is undesirable because it interferes with laissez-faire policies, which are very important for financial markets. Governments therefore have a challenging role to play. Its purpose is to ensure the smooth functioning of the financial system. However, this should be done without direct intervention.
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Answer: Petroleum exports
Explanation:
Saudi Arabia's oil exports are a major economic branch. Almost all economic income in the country (about 90%) is based on oil exports. Oil in Saudi Arabia was discovered in 1932, and since then, it has become a major economic factor in the country. Before the discovery of oil, Saudi Arabia was a poor country. The main activities were livestock and agriculture. Before discovering oil, Saudi Arabia based its economy on religious tourism, which still plays an important role in the country's economy.
The Reconstruction era is always a challenge to teach. First, it was a period of tremendous political complexity and far-reaching consequences. A cursory survey of Reconstruction is never satisfying, but a fuller treatment of Reconstruction can be like quick sand—easy to get into but impossible to get out of. Second, to the extent that students may have any preconceptions about Reconstruction, they are often an obstacle to a deeper understanding of the period. Given these challenges, I have gradually settled on an approach to the period that avoids much of the complex chronology of the era and instead focuses on the “big questions” of Reconstruction.
However important a command of the chronology of Reconstruction may be, it is equally important that students understand that Reconstruction was a period when American waged a sustained debate over who was an American, what rights should all Americans enjoy, and what rights would only some Americans possess. In short, Americans engaged in a strenuous debate about the nature of freedom and equality.
With the surrender of Confederate armies and the capture of Jefferson Davis in the spring of 1865, pressing questions demanded immediate answers.
