Ihave a max/min thermometer in my greenhouse. it records both the highest and the lowest temperatures reached since the time i reset it. i reset it on sunday when the temperature was 4 degrees celcius. overnight the temperature fell by 5 degrees. then during monday it rose by 6 degrees before falling 10 degrees during the night. on tuesday it rose by 4 degrees and fell by 2 degrees overnight. on wednesday morning, what were the minimum and maximum temperatures recorded