(Question)
Q: Which other planet in the solar system is the easiest to observe from earth? Choices: - Pluto - Mercury - Jupiter - mars A:
(Answer)
mars

(Question)
Q: The measure of magnetic fields is named after a serbian physicist. what is his name? Choices: - Carl Sagan - Albert Einstein - Niels Bohr - nikola tesla A:
(Answer)
nikola tesla

(Question)
Q: What are two basic types of pollutants in the air? Choices: - smog and coal - organic and inorganic - pesticides and smog - primary and secondary pollutants A:
(Answer)
primary and secondary pollutants