Scientists Explain How Puerto Rico Geographic Features Protect It
Some scientists speculate that changes in atmospheric methane were responsible for some abrupt global warming events in the past such as the one at the end of the geologic period known as the. Scientists could not build on each other's work if they could not trust the published work of their colleagues; thus progress in science depends on the ____________ of practicing scientists. Some companies even provided senior scientists with free time to pursue their own research interests, whatever they might be. Consequently, some scientists were drawn to industrial research not. For decades scientists believed in the (i) _____________ of long-term memories; they were unstable for a few hours but then became etched into the brain for good.
Puerto Rico: Featured in National Geographic
