SCIENCE: In the fission of Uranium-235, what is the average number of neutrons produced in the fission reaction?

SCIENCE: Which is the following scientist was awarded the Nobel Prize in 1911 for the discovery of the radioactive elements, radium and polonium?

SCIENCE: Global climate change is being attributed to the atmospheric increase in what two gases produced by human activities?

SCIENCE: Which of the following doesn't account for an increase in atmospheric CO2 (carbon dioxide) levels?

MATH: What is the reciprocal of cosecant?

MATH: What does in Pythagorean Theorem stands for $$a^2+b^2=c^2$$  ?

MATH: What Greek letter denotes the level of significance in statistical treatment?

MATH: Find the volume of a cube with a 7m long edge.

MATH: Polygons with uniform measures of side length and angle measure?