QUES: 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.
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MY QUESTION: How can I understand density?

QUES: A handful of Bronze Age relics has fostered an assumption that prehistoric settlers inhabited Ibiza thousands of years ago. Greater evidence of such a people is found on Mallorca and Menorca than on Ibiza, but one of the Balearics' most important sites is actually on the island of Formentera, where the megalithic monument/tomb of Ca Na Costa has been dated to 2000 b.c. Ibiza's key location between Africa and ancient Iberia made it a convenient stopover for Mediterranean seafarers, such as the Phoenician traders, who called the island Ibosim. The Greeks dubbed it Ebysos, the Romans called it Ebusus, and the Moors, Yebisah. The Carthaginians: A detailed history of the island doesn't begin until it became a colony of Carthage in the 7th century b.c. . The Carthaginians originally came from the area comprising present-day Lebanon, and from their bases in North Africa and what's now Spain, they challenged the Roman Empire for domination of the Mediterranean region. Their interest in Ibiza lay partly in its vast salt flats, which to this day remain the source of a profitable industry. They capitalized on the natural resources by using the salt to cure fish, which they exported to their home country. The Carthaginians also carried out lead mining and continued to be of significance up until this century. It is believed that the lead pellets which were used by the Carthaginian general Hannibal were made on Ibiza. The Carthaginians also considered the island a holy place, and here in great splendour they buried thousands of their citizens in a huge necropolis on the Puig des Molins (Hill of the Windmills) below the Dalt Vila (Old Town) of Ibiza. Under the gnarled olive trees archaeologists have uncovered a treasure trove of statues, jewellery, pitchers, tools, and coins, which are now displayed in the town's two archaeological museums. The Romans never really infiltrated Ibiza, and even after the defeat of Hannibal in 202 b.c. during the Second Punic War their influence was restrained. Only with the fall of Carthage in 146 b.c. did they manage to make inroads, but, as local historians stress, Ibiza was neither conquered nor annexed by Rome, but confederated, retaining remarkable autonomy. For centuries to come the old Carthaginian traditions were allowed to continue on Ibiza alongside the new Roman way of life.
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MY QUESTION: What was the Greek name for Ibiza?

QUES: California lags far behind comparable states in funding legal services for the poor, a situation so dire that only 28 percent of the civil legal needs of the state's poor and lowerincome residents are being addressed. That figures translates into 2 million people without the ability to access the justice system, according to a new study by the California Commission on Access to Justice, which also found that despite increased spending, the gap between need and services remains substantial. "As a practical matter, in most cases there can be no access to justice without access to legal assistance," said Jack Londen, past commission chair and a partner with Morrison & Foerster in San Francisco. "Whether we like it or not, sometimes landlords illegally evict tenants, children with disabilities are denied proper care, veterans don't get services guaranteed to them, and elderly people need legal assistance to escape the abuse of a caregiver." California has the highest number of people in poverty in the nation - 6.4 million, including nearly one in five children. Half the nation's increase in poverty in the 1990s, when the number of poor jumped 30 percent, occurred in California, and nearly 25 percent of the nation's poverty increase occurred in Los Angeles County alone. Even those with jobs are suffering: 26 percent of California workers earn poverty level wages. The commission's report, "The Path to Equal Justice: A Five-Year Status Report on Access to Justice in California," examined how the legal needs of the state's poor have changed in the last five years as well as both the shortcomings of the justice system and the improvements during that period. Despite increases in state funding to meet the legal needs of the poor, low interest rates (which have reduced the IOLTA fund), high unemployment and the present economic downturn have threatened any gains.
Do you have any questions?
MY QUESTION: Who made the following remark: "Whether we like it or not, sometimes landlords illegally evict tenants, children with disabilities are denied proper care, veterans don't get services guaranteed to them, and elderly people need legal assistance to escape the abuse of a caregiver."

QUES: Not until 1998 did al Qaeda undertake a major terrorist operation of its own, in large part because Bin Laden lost his base in Sudan. Ever since the Islamist regime came to power in Khartoum, the United States and other Western governments had pressed it to stop providing a haven for terrorist organizations. Other governments in the region, such as those of Egypt, Syria, Jordan, and even Libya, which were targets of some of these groups, added their own pressure. At the same time, the Sudanese regime began to change. Though Turabi had been its inspirational leader, General Omar al Bashir, president since 1989, had never been entirely under his thumb. Thus as outside pressures mounted, Bashir's supporters began to displace those of Turabi. The attempted assassination in Ethiopia of Egyptian President Hosni Mubarak in June 1995 appears to have been a tipping point. The would-be killers, who came from the Egyptian Islamic Group, had been sheltered in Sudan and helped by Bin Laden. When the Sudanese refused to hand over three individuals identified as involved in the assassination plot, the UN Security Council passed a resolution criticizing their inaction and eventually sanctioned Khartoum in April 1996. A clear signal to Bin Laden that his days in Sudan were numbered came when the government advised him that it intended to yield to Libya's demands to stop giving sanctuary to its enemies. Bin Laden had to tell the Libyans who had been part of his Islamic army that he could no longer protect them and that they had to leave the country. Outraged, several Libyan members of al Qaeda and the Islamic Army Shura renounced all connections with him. Bin Laden also began to have serious money problems. International pressure on Sudan, together with strains in the world economy, hurt Sudan's currency. Some of Bin Laden's companies ran short of funds. As Sudanese authorities became less obliging, normal costs of doing business increased. Saudi pressures on the Bin Laden family also probably took some toll. In any case, Bin Laden found it necessary both to cut back his spending and to control his outlays more closely.
Do you have any questions?
MY QUESTION:
What assassination plot caused the U.N. Security Council to sanction the Sudanese government?