Question 2 level curves are called isothermals in the Context of temperature as a function of place and time . The figure below shows the isothermials for the Water temperature, in (c ) in a lake as a function of depth and time of year . 0 12 16 20 lake -OO 5 + Depth (m) 20 16 12 10+ 15 120 160 200 240 280 Day of 1998 Use it to estimate the temperature in the ( a) on day 160 at a depth of 5 meters ( b) on day 220 at a depth of 10 meters You can mark up the graph or write a brief explanation to justify your answers