Oil-based economy refers to the world's dependency on petroleum, natural gas and coal for energy. Electricity, diesel fuel, gasoline and kerosene are only some of the commodities that are provided by oil. However, there are negative effects of the processing to the environment. Combustion of oil by cars yield sulfur oxides, nitric oxides and carbon dioxide that participate in ozone depletion and global warming. Therefore, the more-developed nations are working on better technologies to harness renewable energy for sustainability. These energy refer to solar, hydropower, wind, and tidal resources. As of now, there are problems on the cost of developing and perfecting these technologies to maximize the energy source. Unfortunately, if the world shifts to the clean energy-economy, the less developed countries would have to catch up a great deal. These equipment are quite expensive, so for a time-being, only the more developed countries would participate and earn from it.
The correct answer: Break Islamic rule
<span>The pre-condition which had to be accomplished on the iberian peninsula before portugal and spain could unify internally as nations is to break Islamic rule. It is so because most of the iberian is controlled by the Moors, an Islamic people who conquered most of Spain and Portugal. Without the Moors removed, the rulers of both Spain and Portugal are nothing more than usurpers to power, guerillas if you will.</span>
Explanation:
the nations needed resources along with more land as to increase their empire. although risky, like Britain's American colony, they had a lot of benefits if pulled off corectly
It stemmed from the annexation of the Republic of Texas by the U.S. in 1845 and from a dispute over whether Texas ended at the Nueces River (the Mexican claim) or the Rio Grande (the U.S. claim).
You didn't add the choices, but I've had this question before the answer is that nearly all of the male immigrants were male, so children came from unions with Native Americans.
