The Japan Marine Science and Technology Center (JAMSTAC) is acclaimed for launching both the
deepest-diving manned and unmanned submersibles to date. Indicate whether the statement is true or false.
ANS: T
The Center is a consortium of Japanese industries and government agencies. The Shinkai 6500 was
launched in 1989 and is the deepest-diving manned submersible. Kaiko, the largest unmanned remote
operated vehicle to date became operational in 1995. Information can be found in the section
Contemporary Oceanography Makes Use of Modern Technology
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Evidence for the existence of dark matter includes ________
A) the observation that the universe is not expanding as fast as predicted by Big Bang Theory B) the observation that stars near the center of galaxies do not rotate as fast as expected C) the observation that Mercury rotates about the Sun faster than Pluto D) the observation that the universe appears to be slowing down
The age of the Dead Sea Scrolls was found by carbon-14 dating. Could this technique have worked if they were carved in stone tablets? Explain.
A. No, this method of dating requires a material that was once living. B. Yes, because X-ray images could be collected instead. C. No, the stones in the arid environment of the Dead Sea would have lost all of their carbon-14 by now. D. Yes, because there are appreciable levels of carbon even in stone.
Plate movements across Earth's surface are believed to be caused by convection in the mantle
Indicate whether the statement is true or false.
Glaciers are like dirty snowballs because they
A) roll like a ball. B) are always melting. C) consist of debris embedded in ice. D) are round.