Problem: At 8:38, Ong told Gonzalez that the plane was flying erratically again. Around this time Sweeney told Woodward that the hijackers were Middle Easterners, naming three of their seat numbers. One spoke very little English and one spoke excellent English. The hijackers had gained entry to the cockpit, and she did not know how. The aircraft was in a rapid descent. At 8:41, Sweeney told Woodward that passengers in coach were under the impression that there was a routine medical emergency in first class. Other flight attendants were busy at duties such as getting medical supplies while Ong and Sweeney were reporting the events. At 8:41, in American's operations center, a colleague told Marquis that the air traffic controllers declared Flight 11 a hijacking and "think he's [American 11] headed toward Kennedy [airport in New York City]. They're moving everybody out of the way. They seem to have him on a primary radar. They seem to think that he is descending." At 8:44, Gonzalez reported losing phone contact with Ong. About this same time Sweeney reported to Woodward, "Something is wrong. We are in a rapid descent . we are all over the place." Woodward asked Sweeney to look out the window to see if she could determine where they were. 

Question: "How many minutes passed until Sweeney confirmed the ground operations belief that the plane was descending and trying to land."

Answer: "2 minutes"
Answer: no

Problem: Independence with Partition: The British began to see India's independence as inevitable; however, only a few seemed to understand the vital role of the religious groups. Britain prepared a parliamentary democracy with majority rule, but the majority were Hindus — and Hindus, Muslims, and Sikhs had been killing each other in war for many centuries. Nehru's Congress Party, largely Hindu with a socialist leadership, wanted a parliamentary democracy. As counterweight, British legislation reserved parliamentary seats for religious minorities, but the Punjab and Bengal had such a complicated mixture of Hindus, Muslims, and Sikhs that it was not possible to avoid fights over how separate constituencies were to be formed. The seeds of future trouble were sown. The legislation on reserving seats gave the Muslims the basis for an alternative to an India in which they were only a quarter of the population: Partition. In 1930, the poet Muhammad Iqbal proposed a separate Muslim homeland in the northwest of India. A small group of Indian Muslims at Cambridge came up with the name Pakistan, using the initials of the Punjab, Afghania (N.W. Frontier Province), Kashmir, and Sind (at the same time producing the word pak, meaning "pure"), and adding "stan," the Persian suffix for the word "country. " The Muslim campaign for Partition was led by London-trained Bombay lawyer, Muhammad Ali Jinnah. Meanwhile, Gandhi vehemently opposed any dismemberment of the country, and tried to keep people united by fasting to uphold the spirit of love, and by focussing on the common adversary: the British. Advocating civil disobedience, he led his famous Salt March to the sea, to scoop up salt and circumvent the hated British salt tax. This put more than 60,000 in jail. Against this militancy, World War II did not elicit the solidarity of the first. Indians courageously fought alongside the British troops, in Burma, the Middle East, and Europe, but Gandhi saw the British as a provocation for Japanese invasion and was jailed yet again, for launching a "Quit India" campaign in the year 1942. Some anti-British extremists saw the Japanese as an Asian liberator. Winston Churchill didn't want any Indian independence and so it was probably as well for India that he was defeated by Attlee's Labor Party in 1945. With riots growing ever more bloody in Bengal, Bihar, and the Punjab, India's last viceroy, Lord Mountbatten, kept a mandate to make the British departure as quick and as smooth as possible. Quick it was — six months after his arrival — but not smooth. 

Question: "Who led his famous Salt March to the sea, to scoop up salt and circumvent the hated British salt tax?"

Answer: "Nehru"
Answer: no

Problem: Density is also an important physical property of matter. The concept of density combines what we know about an objects mass and volume. Density reflects how closely packed the particles of matter are. When particles are packed together more tightly, matter is more dense. Differences in density of matter explain many phenomena. It explains why helium balloons rise. It explains why currents such as the Gulf Stream flow through the oceans. It explains why some things float in or sink. You can see this in action by pouring vegetable oil into water. You can see a colorful demonstration in this video. 

Question: "How can I understand density?"

Answer: "By watching the environment"
Answer:
no