[Q]: Trained volunteers are collecting baseline data on water quality, and testing for selected suspected contaminants of the coral reef. Volunteers are testing contamination near a coral reef unrelated to the coral reef itself
[A]: No

[Q]: Cosmonaut Valery Polyakov set the record for the longest continuous amount of time spent in space, a staggering 438 days, between 1994 and 1995. He orbited the Earth 7000 times, witnessing 7000 sunrises and 7000 sunsets. He went back to space later.
[A]: It's impossible to say

[Q]: Intamin Worldwide is a designing and manufacturing company in Wollerau, Switzerland. It is best known for creating thrill rides and roller coasters worldwide. The Intamin brand name is an abbreviation for "international amusement installations". The company has offices throughout the world including three in Europe, three in Asia and two in the United States. Intamin Worldwide has four offices in Europe. 
[A]: No

[Q]: The Big River, an inland perennial river of the Goulburn Broken catchment, part of the Murray-Darling basin, is located in the lower South Eastern Highlands bioregion and Northern Country/North Central regions of the Australian state of Victoria. The headwaters of the Big River rise on the northern slopes of the Yarra Ranges and descend to flow into the Goulburn River within Lake Eildon. The Big River is bigger than the Goulburn River but neither are as big as the Murray-Darling basin.
[A]:
It's impossible to say