CAT Question of the Day How many numbers from the set A ≡ {11, 111, 1111, …, 111111…20 times} have an odd number of factors?
| OPTIONS | | |  | 1) | 4 | | | 2) | 3 | | | 3) | 7 | | | 4) | 9 | | | 5) | None of these |
Tip of the Day In a typical GD, if you don't have much data on the topic under discussion, don't panic. Listen to other participants' points and build up on them or paraphrase (with some additions) what they have already said. Last year's Question of the day (12-Feb-11) With a global recession looming and high oil and food prices undermining the living standards of the Western middle class, it is becoming ever harder to sell the high-cost, inefficient Kyoto-style solution of drastic carbon cuts. A much sounder approach than Kyoto and its successor would be to invest more in R & D of zero-carbon energy technologies- a cheaper, more effective way to truly solve the climate problem. Campaigner Mark Lynas envisions Nuremberg-style "international criminal tribunals" against those who dare to challenge the climate dogma. The globe's real problem is not a series of inconvenient facts. It is that we have blocked out sensible solutions through an alarmist panic, leading to bad policies. Consider one of the most significant steps taken to respond to climate change. Adopted because of the climate panic, bio-fuels were supposed to reduce CO2 emissions. Hansen described them as part of a "brighter future for the planet." But using bio-fuels to combat climate change must rate as one of the poorest global "solutions" to any great challenge in recent times. Bio-fuels essentially takes food from mouths and puts it into cars. The grain required to fill the tank of an SUV with ethanol is enough to feed one African for a year. Thirty percent of this year's corn production in the United States will be burned up on America's highways. This has been possible only through subsidies that globally will total $15 billion this year alone. Because increased demand for bio-fuels leads to cutting down carbon-rich forests, a 2008 Science study showed that the net effect of using them is not to cut CO2 emissions, but to double them. The rush towards bio-fuels has also strongly contributed to rising food prices, which have tipped another roughly 30 million people into starvation. Because of climate panic, our attempts to mitigate climate change have provoked an unmitigated disaster. We will waste hundreds of billions of dollars, worsen global warming, and dramatically increase starvation. We have to stop being scared silly, stop pursuing stupid policies, and start investing in smart long-term R&D. Accusations of "crimes against humanity" must cease. Indeed, the real offense is the alarmism that closes minds to the best ways to respond to climate change.
Choose the most significant answer to: Using bio-fuels for combating climate change is one of the poorest global "solutions"...
| OPTIONS | | | | | 1) | Because the grain required to fill the tank of an SUV with ethanol is enough to feed one African for a year. | | | 2) | Because increased demand for bio-fuels leads to cutting down of carbon-rich forests. | | | 3) | Because the rush towards bio-fuels has strongly contributed to rising food prices. | | | 4) | Because widespread use of bio-fuels, will render hundreds of billions of dollars wasted, worsen global warming, and dramatically increase starvation. | | | 5) | Because another 30 million people will face starvation. |
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