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Comment on Polafish
Hey, how come the salinity of
The desalinization plant isn
The desalinization plant isn't there to remove salt from the river, It's there to remove salt from pretzels ("pretzel desalinization plant"). I know there's no such thing as a pretzel desalinization plant (yet!). The term is somewhat tongue-in-cheek. So, once the plant removes the salt from pretzels, it appears that some of the salt is making its way into the river.
Haha, this is a funny one.
Hello Brent .... Need help on
According to me if certain Climatic conditions follow the outbreak does it not mean its too late to use the Vaccine as the by the time you realise the phenomena has hit your already 2 - 5 months into it and since the vaccine does not work for a month ... its actually a waste ? I agree if the climatic conditions occurred before the phenomena occurred ?
Also according to me option b is better as if there I an export ban I will give my cattle a pre-vaccine so
that my sales are not impacted
Outbreaks of Rift Valley fever occur irregularly in East Africa, several years apart. When outbreaks do occur, they kill thousands of cattle. A livestock vaccine against the disease exists but is rarely used. It is too expensive for farmers to use routinely, and since it is not effective until a month after vaccination, administering it after an outbreak begins helps very little. Nevertheless, experts predict that use of the vaccine will increase significantly within the next few years.
Which of the following, if true, provides the strongest justification for the experts' prediction?
(A) Rift Valley fever is spread by mosquitoes, but each outbreak is so widespread that it is impractical to control it by using insecticides.
(B) When an outbreak of Rift Valley fever occurs, unaffected countries often refuse to import livestock from the countries affected by the outbreak.
(C) It would take less than a month for producers of the vaccine to adjust their production operations to cope with a large increase in demand.
(D) Many cattle farmers in East Africa are nomadic or live in remote villages, and such farmers, who have little access to modern veterinary medicine, are particularly hard hit by outbreaks of Rift Valley fever.
(E) Recently published research has shown that certain identifiable climatic conditions are almost invariably followed, within two to five months, by an outbreak of Rift Valley fever.
We're told that a vaccine
We're told that a vaccine exists, but it's seldom used (for various reasons), yet the "experts predict that use of the vaccine will increase significantly within the next few years."
Why would vaccine use suddenly increase when farmers rarely used it in the past? What has changed?
For answer choice E, the keyword here is RECENTLY.
A RECENT discovery says that we can NOW predict when Rift Valley fever will hit us. In fact, we now have 2-5 months notice, which is enough time to vaccinate the cattle BEFORE the 1-month cut-off.
Answer choice B is invalid because it doesn't explain why the farmers are going to significantly increase their use of the vaccine in the next few years. That is, if unaffected countries have refused to import livestock IN THE PAST, why hasn't vaccine use already increased, and why will it suddenly increase?
Does that help?
Hi Brent thanks for the quick
Aha! Now I see the issue :-)
Aha! Now I see the issue :-)
Answer choice E says "Recently published research has shown that certain identifiable climatic conditions are almost invariably FOLLOWED, within two to five months, BY an outbreak of Rift Valley fever."
So, the climatic conditions come BEFORE the outbreak of Rift Valley fever, not the other way around.
I appreciated this video
Very clear. Thanks for helping me understand.