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 have long debated the exact timing of the lunar cataclysm, a period approximately 4 billion years ago when Earth and the Moon were pummeled with asteroids. A clue to this puzzle may come.
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.
A number of scientists have published articles (i) _____ global warming, stating (ii) _____ that there is no solid scientific evidence to support the theory that the Earth is warming because of increases in.
It is assumed that scientists will avoid making (i) _____ claims about the results of their experiments because of the likelihood that they will be exposed when other researchers cannot (ii) _____ their.
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.
