<span>A method of processing coal to remove contaminants by mixing coal in a solution of potassium permanganate in a selected concentration range, rinsing the coal, mixing the coal in a solution of ammonia hydroxide in a selected concentration range to cause the solution to be brought into contact with the surfaces and pores of the coal, discharging the processed coal from the second reaction vessel, monitoring the process to detect when the concentration of aqueous ammonia in the second reaction vessel has fallen below the selected range, and feeding aqueous ammonia solution with an ammonia concentration in or above the selected range to the second reaction vessel to return the solution to within the selected range.</span>
Answer:
Option B
Explanation:
Communist Socialism was the emergence of socialism in China by bypassing capitalism.
It was marked by the down fall of rich elite class and emergence of socialist democracy and socialist political civilization
Now there will be dominant state-owned enterprises sector along with the market capitalism and private ownership
hence, option B is correct
Answer:
The answer is A. C. and D.
Answer:
There is overwhelming evidence that human activities, especially burning fossil fuels, are leading to increased levels of carbon dioxide and other greenhouse gases in the atmosphere, which in turn amplify the natural greenhouse effect, causing the temperature of the Earth's atmosphere, ocean.
Answer:
The Revolutionary War (1775-1783)
War of 1812 (1812-1815)
Mexican - American War (1846-1848)
American Civil War (1861–1865)
Spanish-American War (1898)
World War I (1914-1918)
World War II (1939-1945)
Korean War (1950-1953)
Explanation:
