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Q: Which other planet in the solar system is the easiest to observe from earth? Read this paragraph and choose the correct option from the provided answers: Mars is the easiest planet to observe. As a result, it has been studied more than any other planet besides Earth. People can stand on Earth and observe the planet through a telescope. We have also sent many space probes to Mars. In April 2011, there were three scientific satellites in orbit around Mars. The rover, Opportunity, was still moving around on the surface. No humans have ever set foot on Mars. NASA and the European Space Agency have plans to send people to Mars. The goal is to do it sometime between 2030 and 2040. The expense and danger of these missions are phenomenal. Choices: - Pluto - Mercury - Jupiter - mars A:
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mars

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Q: The measure of magnetic fields is named after a serbian physicist. what is his name? Read this paragraph and choose the correct option from the provided answers: For static electric charges, the electromagnetic force is manifested by the Coulomb electric force alone. If charges are moving, an additional force emerges, called magnetism. The century realization that electricity and magnetism are dual aspects of the same force completely changed our understanding of the world we live in. Insights due to Ampere, Gauss, and Maxwell led to the understanding that moving charges electric currents create magnetic fields. Varying magnetic fields create electric fields. Thus a loop of wire in a changing magnetic field will have current induced in it. This is called electromagnetic induction. Magnetic fields are usually denoted by the letter and are measured in Teslas, in honor of the Serbian physicist Nikola Tesla. Choices: - Carl Sagan - Albert Einstein - Niels Bohr - nikola tesla A:
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nikola tesla

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Q: What are two basic types of pollutants in the air? Read this paragraph and choose the correct option from the provided answers: There are two basic types of pollutants in air. They are known as primary pollutants and secondary pollutants. Choices: - smog and coal - organic and inorganic - pesticides and smog - primary and secondary pollutants A:
(Answer)
primary and secondary pollutants