​How many angstroms are in 1 micron? Yesterday's question was "What is the common botanical term for the response a cell or plant has towards or away from a stimulus?" The answer was taxis. 

​What is the common botanical term for the response a cell or plant has towards or away from a stimulus? Yesterday's question was "What layer of the Sun’s atmosphere is immediately interior to the corona?" The answer was the chromosphere. 

​What layer of the Sun’s atmosphere is immediately interior to the corona? Yesterday's question was "What is the chemical symbol for the toxic element that causes mental retardation and is medically referred to as Plumbism?" The answer is Pb or lead. 

​What is the chemical symbol for the toxic element that causes mental retardation and is medically referred to as Plumbism? Yesterday's question was "Physicists believe there are four fundamental forces of nature. Name any two of them." The answer was Gravity, Electromagnetic, strong, or weak force. 

​Physicists believe there are four fundamental forces of nature. Name any two of them. Friday's question was "What is the maximum number of covalent bonds between any 2 carbon atoms?" The answer was 3