Starting at the transition between the Middle to Upper Paleolithic period, some 80,000 to 70,000 years ago, some hunter-gatherers bands began to specialize, concentrating on hunting a smaller selection of (often larger) game and gathering a smaller selection of food. This specialization of work also involved creating specialized tools, like fishing nets and hooks and bone harpoons. The transition into the subsequent Neolithic period is chiefly defined by the unprecedented development of nascent agricultural practices. Agriculture originated and spread in several different areas including the Middle East, Asia, Mesoamerica, and the Andes beginning as early as 12,000 years ago.
When did the use of agriculture begin it's spread?
12,000 years ago

The major application of uranium in the military sector is in high-density penetrators. This ammunition consists of depleted uranium (DU) alloyed with 12% other elements, such as titanium or molybdenum. At high impact speed, the density, hardness, and pyrophoricity of the projectile enable the destruction of heavily armored targets. Tank armor and other removable vehicle armor can also be hardened with depleted uranium plates. The use of depleted uranium became politically and environmentally contentious after the use of such munitions by the US, UK and other countries during wars in the Persian Gulf and the Balkans raised questions concerning uranium compounds left in the soil (see Gulf War Syndrome).
What percentage of high-density penetrators is not made up of depleted uranium?
12%

The Samoan government has called for deregulation of the financial sector, encouragement of investment, and continued fiscal discipline.[citation needed] Observers point to the flexibility of the labour market as a basic strength for future economic advances.[citation needed] The sector has been helped enormously by major capital investment in hotel infrastructure, political instability in neighbouring Pacific countries, and the 2005 launch of Virgin Samoa a joint-venture between the government and Virgin Australia (then Virgin Blue).
The flexibility of what segment could support economic growth in Samoa?
the labour market